4521967 has 4 divisors (see below), whose sum is σ = 4526496. Its totient is φ = 4517440.

The previous prime is 4521929. The next prime is 4521971. The reversal of 4521967 is 7691254.

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 is a cyclic number.

It is not a de Polignac number, because 4521967 - 2¹¹ = 4519919 is a prime.

It is a Duffinian number.

4521967 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34 + ... + 3007.

It is an arithmetic number, because the mean of its divisors is an integer number (1131624).

Almost surely, 2^4521967 is an apocalyptic number.

4521967 is a deficient number, since it is larger than the sum of its proper divisors (4529).

4521967 is a wasteful number, since it uses less digits than its factorization.

4521967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528.

The product of its digits is 15120, while the sum is 34.

The square root of 4521967 is about 2126.4917117167. The cubic root of 4521967 is about 165.3645688506.

The spelling of 4521967 in words is "four million, five hundred twenty-one thousand, nine hundred sixty-seven".