84576864 has 24 divisors (see below), whose sum is σ = 222014520. Its totient is φ = 28192256.

The previous prime is 84576859. The next prime is 84576871. The reversal of 84576864 is 46867548.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 440409 + ... + 440600.

It is an arithmetic number, because the mean of its divisors is an integer number (9250605).

Almost surely, 2^84576864 is an apocalyptic number.

It is an amenable number.

84576864 is an abundant number, since it is smaller than the sum of its proper divisors (137437656).

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

84576864 is a wasteful number, since it uses less digits than its factorization.

84576864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881022 (or 881014 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The square root of 84576864 is about 9196.5680555303. The cubic root of 84576864 is about 438.9521622557.

The spelling of 84576864 in words is "eighty-four million, five hundred seventy-six thousand, eight hundred sixty-four".