64584372 has 24 divisors (see below), whose sum is σ = 151076800. Its totient is φ = 21473856.

The previous prime is 64584367. The next prime is 64584379. The reversal of 64584372 is 27348546.

It is a happy number.

It is a super-2 number, since 2×64584372² = 8342282213268768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 64584372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64584379) 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, 1672 + ... + 11487.

Almost surely, 2^64584372 is an apocalyptic number.

It is an amenable number.

64584372 is an abundant number, since it is smaller than the sum of its proper divisors (86492428).

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

64584372 is a wasteful number, since it uses less digits than its factorization.

64584372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13575 (or 13573 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 64584372 is about 8036.4402567306. The cubic root of 64584372 is about 401.2137549388.

The spelling of 64584372 in words is "sixty-four million, five hundred eighty-four thousand, three hundred seventy-two".