64872500 has 120 divisors (see below), whose sum is σ = 177393216. Its totient is φ = 20160000.

The previous prime is 64872499. The next prime is 64872529. The reversal of 64872500 is 527846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 192332 + ... + 192668.

Almost surely, 2^64872500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64872500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88696608).

64872500 is an abundant number, since it is smaller than the sum of its proper divisors (112520716).

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

64872500 is a wasteful number, since it uses less digits than its factorization.

64872500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 64872500 is about 8054.3466525846. The cubic root of 64872500 is about 401.8095101721.

The spelling of 64872500 in words is "sixty-four million, eight hundred seventy-two thousand, five hundred".