64606636 has 12 divisors (see below), whose sum is σ = 113463112. Its totient is φ = 32188608.

The previous prime is 64606627. The next prime is 64606637. The reversal of 64606636 is 63660646.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64606595 and 64606604.

It is not an unprimeable number, because it can be changed into a prime (64606637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27405 + ... + 29668.

Almost surely, 2^64606636 is an apocalyptic number.

It is an amenable number.

64606636 is a deficient number, since it is larger than the sum of its proper divisors (48856476).

64606636 is a wasteful number, since it uses less digits than its factorization.

64606636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57360 (or 57358 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 64606636 is about 8037.8253277861. The cubic root of 64606636 is about 401.2598527616.

The spelling of 64606636 in words is "sixty-four million, six hundred six thousand, six hundred thirty-six".