64972 has 12 divisors (see below), whose sum is σ = 117040. Its totient is φ = 31536.

The previous prime is 64969. The next prime is 64997. The reversal of 64972 is 27946.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 64972.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72 + ... + 367.

2⁶⁴⁹⁷² is an apocalyptic number.

It is an amenable number.

64972 is a deficient number, since it is larger than the sum of its proper divisors (52068).

64972 is a wasteful number, since it uses less digits than its factorization.

64972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 478 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 64972 is about 254.8960572469. The cubic root of 64972 is about 40.2014834069.

The spelling of 64972 in words is "sixty-four thousand, nine hundred seventy-two".