64631712 has 24 divisors (see below), whose sum is σ = 169658496. Its totient is φ = 21543872.

The previous prime is 64631701. The next prime is 64631713. The reversal of 64631712 is 21713646.

64631712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 64631712.

It is not an unprimeable number, because it can be changed into a prime (64631713) 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, 336528 + ... + 336719.

It is an arithmetic number, because the mean of its divisors is an integer number (7069104).

Almost surely, 2^64631712 is an apocalyptic number.

It is an amenable number.

64631712 is an abundant number, since it is smaller than the sum of its proper divisors (105026784).

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

64631712 is a wasteful number, since it uses less digits than its factorization.

64631712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673260 (or 673252 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 64631712 is about 8039.3850511093. The cubic root of 64631712 is about 401.3117601773.

The spelling of 64631712 in words is "sixty-four million, six hundred thirty-one thousand, seven hundred twelve".