64972712 has 16 divisors (see below), whose sum is σ = 139227360. Its totient is φ = 27845424.

The previous prime is 64972711. The next prime is 64972727. The reversal of 64972712 is 21727946.

It is not an unprimeable number, because it can be changed into a prime (64972711) 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, 580058 + ... + 580169.

It is an arithmetic number, because the mean of its divisors is an integer number (8701710).

Almost surely, 2^64972712 is an apocalyptic number.

It is an amenable number.

64972712 is an abundant number, since it is smaller than the sum of its proper divisors (74254648).

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

64972712 is a wasteful number, since it uses less digits than its factorization.

64972712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160240 (or 1160236 counting only the distinct ones).

The product of its digits is 42336, while the sum is 38.

The square root of 64972712 is about 8060.5652407260. The cubic root of 64972712 is about 402.0163025657.

The spelling of 64972712 in words is "sixty-four million, nine hundred seventy-two thousand, seven hundred twelve".