64649732 has 12 divisors (see below), whose sum is σ = 129299520. Its totient is φ = 27707016.

The previous prime is 64649713. The next prime is 64649773. The reversal of 64649732 is 23794646.

64649732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

64649732 is an admirable number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 64649732.

It is an unprimeable number.

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, 1154432 + ... + 1154487.

It is an arithmetic number, because the mean of its divisors is an integer number (10774960).

Almost surely, 2^64649732 is an apocalyptic number.

It is an amenable number.

64649732 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64649732 is a wasteful number, since it uses less digits than its factorization.

64649732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308930 (or 2308928 counting only the distinct ones).

The product of its digits is 217728, while the sum is 41.

The square root of 64649732 is about 8040.5057054889. The cubic root of 64649732 is about 401.3490533559.

The spelling of 64649732 in words is "sixty-four million, six hundred forty-nine thousand, seven hundred thirty-two".