64472860 has 24 divisors (see below), whose sum is σ = 135757440. Its totient is φ = 25719744.

The previous prime is 64472851. The next prime is 64472873. The reversal of 64472860 is 6827446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3637 + ... + 11923.

It is an arithmetic number, because the mean of its divisors is an integer number (5656560).

Almost surely, 2^64472860 is an apocalyptic number.

It is an amenable number.

64472860 is an abundant number, since it is smaller than the sum of its proper divisors (71284580).

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

64472860 is a wasteful number, since it uses less digits than its factorization.

64472860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8685 (or 8683 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 64472860 is about 8029.4993617286. The cubic root of 64472860 is about 400.9827087318.

The spelling of 64472860 in words is "sixty-four million, four hundred seventy-two thousand, eight hundred sixty".