3664539 has 12 divisors (see below), whose sum is σ = 5422872. Its totient is φ = 2383200.

The previous prime is 3664519. The next prime is 3664547. The reversal of 3664539 is 9354663.

3664539 is a `hidden beast` number, since 3 + 6 + 645 + 3 + 9 = 666.

It is not a de Polignac number, because 3664539 - 2¹² = 3660443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3664519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4597 + ... + 5334.

It is an arithmetic number, because the mean of its divisors is an integer number (451906).

Almost surely, 2^3664539 is an apocalyptic number.

3664539 is a deficient number, since it is larger than the sum of its proper divisors (1758333).

3664539 is a wasteful number, since it uses less digits than its factorization.

3664539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9978 (or 9975 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 3664539 is about 1914.2985660549. The cubic root of 3664539 is about 154.1723347644.

The spelling of 3664539 in words is "three million, six hundred sixty-four thousand, five hundred thirty-nine".