4681569 has 4 divisors (see below), whose sum is σ = 6242096. Its totient is φ = 3121044.

The previous prime is 4681561. The next prime is 4681597. The reversal of 4681569 is 9651864.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4681569 - 2³ = 4681561 is a prime.

It is a super-2 number, since 2×4681569² = 43834176603522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4681561) 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 3 ways as a sum of consecutive naturals, for example, 780259 + ... + 780264.

It is an arithmetic number, because the mean of its divisors is an integer number (1560524).

Almost surely, 2^4681569 is an apocalyptic number.

It is an amenable number.

4681569 is a deficient number, since it is larger than the sum of its proper divisors (1560527).

4681569 is a wasteful number, since it uses less digits than its factorization.

4681569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560526.

The product of its digits is 51840, while the sum is 39.

The square root of 4681569 is about 2163.6933701428. The cubic root of 4681569 is about 167.2876227194.

The spelling of 4681569 in words is "four million, six hundred eighty-one thousand, five hundred sixty-nine".