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4566769 = 21372

4566769 has 3 divisors (see below), whose sum is σ = 4568907. Its totient is φ = 4564632.

The previous prime is 4566767. The next prime is 4566781. The reversal of 4566769 is 9676654.

The square root of 4566769 is 2137.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 207025 + 4359744 = 455^2 + 2088^2 .

It is not a de Polignac number, because 4566769 - 21 = 4566767 is a prime.

It is a super-2 number, since 2×45667692 = 41710758198722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

4566769 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4566767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1069 + ... + 3205.

It is an arithmetic number, because the mean of its divisors is an integer number (1522969).

Almost surely, 24566769 is an apocalyptic number.

4566769 is the 2137-th square number.

4566769 is the 1069-th centered octagonal number.

It is an amenable number.

4566769 is a deficient number, since it is larger than the sum of its proper divisors (2138).

4566769 is an frugal number, since it uses more digits than its factorization.

4566769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274 (or 2137 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The cubic root of 4566769 is about 165.9088990621.

It can be divided in two parts, 4566 and 769, that added together give a palindrome (5335).

The spelling of 4566769 in words is "four million, five hundred sixty-six thousand, seven hundred sixty-nine".

Divisors: 1 2137 4566769