64609372 has 24 divisors (see below), whose sum is σ = 115577280. Its totient is φ = 31595520.

The previous prime is 64609357. The next prime is 64609387. The reversal of 64609372 is 27390646.

It is an interprime number because it is at equal distance from previous prime (64609357) and next prime (64609387).

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, 33597 + ... + 35467.

It is an arithmetic number, because the mean of its divisors is an integer number (4815720).

Almost surely, 2^64609372 is an apocalyptic number.

It is an amenable number.

64609372 is a deficient number, since it is larger than the sum of its proper divisors (50967908).

64609372 is a wasteful number, since it uses less digits than its factorization.

64609372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061 (or 2059 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 64609372 is about 8037.9955212727. The cubic root of 64609372 is about 401.2655169447.

The spelling of 64609372 in words is "sixty-four million, six hundred nine thousand, three hundred seventy-two".