64862972 has 12 divisors (see below), whose sum is σ = 114571800. Its totient is φ = 32128176.

The previous prime is 64862971. The next prime is 64862999. The reversal of 64862972 is 27926846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64862971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75347 + ... + 76202.

It is an arithmetic number, because the mean of its divisors is an integer number (9547650).

Almost surely, 2^64862972 is an apocalyptic number.

It is an amenable number.

64862972 is a deficient number, since it is larger than the sum of its proper divisors (49708828).

64862972 is a wasteful number, since it uses less digits than its factorization.

64862972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151660 (or 151658 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 64862972 is about 8053.7551489973. The cubic root of 64862972 is about 401.7898375915.

The spelling of 64862972 in words is "sixty-four million, eight hundred sixty-two thousand, nine hundred seventy-two".