84572880 has 80 divisors (see below), whose sum is σ = 299635584. Its totient is φ = 19330560.

The previous prime is 84572869. The next prime is 84572921. The reversal of 84572880 is 8827548.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23491 + ... + 26850.

Almost surely, 2^84572880 is an apocalyptic number.

84572880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84572880 is an abundant number, since it is smaller than the sum of its proper divisors (215062704).

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

84572880 is a wasteful number, since it uses less digits than its factorization.

84572880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50364 (or 50358 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 84572880 is about 9196.3514504395. The cubic root of 84572880 is about 438.9452698551.

The spelling of 84572880 in words is "eighty-four million, five hundred seventy-two thousand, eight hundred eighty".