64670572 has 24 divisors (see below), whose sum is σ = 119196000. Its totient is φ = 30640896.

The previous prime is 64670539. The next prime is 64670591. The reversal of 64670572 is 27507646.

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, 6804 + ... + 13252.

It is an arithmetic number, because the mean of its divisors is an integer number (4966500).

Almost surely, 2^64670572 is an apocalyptic number.

It is an amenable number.

64670572 is a deficient number, since it is larger than the sum of its proper divisors (54525428).

64670572 is a wasteful number, since it uses less digits than its factorization.

64670572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6585 (or 6583 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 64670572 is about 8041.8015394562. The cubic root of 64670572 is about 401.3921740075.

The spelling of 64670572 in words is "sixty-four million, six hundred seventy thousand, five hundred seventy-two".