84673864 has 24 divisors (see below), whose sum is σ = 174510630. Its totient is φ = 38487680.

The previous prime is 84673847. The next prime is 84673891. The reversal of 84673864 is 46837648.

It can be written as a sum of positive squares in only one way, i.e., 55621764 + 29052100 = 7458^2 + 5390^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42769 + ... + 44704.

Almost surely, 2^84673864 is an apocalyptic number.

It is an amenable number.

84673864 is an abundant number, since it is smaller than the sum of its proper divisors (89836766).

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

84673864 is a wasteful number, since it uses less digits than its factorization.

84673864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87501 (or 87486 counting only the distinct ones).

The product of its digits is 774144, while the sum is 46.

The square root of 84673864 is about 9201.8402507325. The cubic root of 84673864 is about 439.1199074702.

The spelling of 84673864 in words is "eighty-four million, six hundred seventy-three thousand, eight hundred sixty-four".