64170472 has 16 divisors (see below), whose sum is σ = 120405060. Its totient is φ = 32062464.

The previous prime is 64170443. The next prime is 64170487. The reversal of 64170472 is 27407146.

It can be written as a sum of positive squares in 2 ways, for example, as 57062916 + 7107556 = 7554^2 + 2666^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18888 + ... + 22024.

Almost surely, 2^64170472 is an apocalyptic number.

It is an amenable number.

64170472 is a deficient number, since it is larger than the sum of its proper divisors (56234588).

64170472 is a wasteful number, since it uses less digits than its factorization.

64170472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5700 (or 5696 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 64170472 is about 8010.6474145352. The cubic root of 64170472 is about 400.3548351370.

The spelling of 64170472 in words is "sixty-four million, one hundred seventy thousand, four hundred seventy-two".