64972076 has 24 divisors (see below), whose sum is σ = 124460784. Its totient is φ = 29494080.

The previous prime is 64972073. The next prime is 64972081. The reversal of 64972076 is 67027946.

It is not an unprimeable number, because it can be changed into a prime (64972073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7070 + ... + 13413.

It is an arithmetic number, because the mean of its divisors is an integer number (5185866).

Almost surely, 2^64972076 is an apocalyptic number.

It is an amenable number.

64972076 is a deficient number, since it is larger than the sum of its proper divisors (59488708).

64972076 is a wasteful number, since it uses less digits than its factorization.

64972076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20561 (or 20559 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 64972076 is about 8060.5257893018. The cubic root of 64972076 is about 402.0149908191.

The spelling of 64972076 in words is "sixty-four million, nine hundred seventy-two thousand, seventy-six".