84321872 has 40 divisors (see below), whose sum is σ = 166953600. Its totient is φ = 41247360.

The previous prime is 84321869. The next prime is 84321889. The reversal of 84321872 is 27812348.

It is a super-2 number, since 2×84321872² = 14220356195168768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225878 + ... + 226250.

It is an arithmetic number, because the mean of its divisors is an integer number (4173840).

Almost surely, 2^84321872 is an apocalyptic number.

It is an amenable number.

84321872 is a deficient number, since it is larger than the sum of its proper divisors (82631728).

84321872 is a wasteful number, since it uses less digits than its factorization.

84321872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 645 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 84321872 is about 9182.6941580344. The cubic root of 84321872 is about 438.5105837948.

The spelling of 84321872 in words is "eighty-four million, three hundred twenty-one thousand, eight hundred seventy-two".