84372864 has 32 divisors (see below), whose sum is σ = 224116440. Its totient is φ = 28124160.

The previous prime is 84372859. The next prime is 84372877. The reversal of 84372864 is 46827348.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109477 + ... + 110244.

Almost surely, 2^84372864 is an apocalyptic number.

It is an amenable number.

84372864 is an abundant number, since it is smaller than the sum of its proper divisors (139743576).

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

84372864 is a wasteful number, since it uses less digits than its factorization.

84372864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219738 (or 219726 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 84372864 is about 9185.4702655879. The cubic root of 84372864 is about 438.5989595440.

The spelling of 84372864 in words is "eighty-four million, three hundred seventy-two thousand, eight hundred sixty-four".