84655872 has 216 divisors, whose sum is σ = 290166240. Its totient is φ = 23224320.

The previous prime is 84655817. The next prime is 84655919. The reversal of 84655872 is 27855648.

84655872 is a `hidden beast` number, since 8 + 4 + 65 + 587 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 467622 + ... + 467802.

Almost surely, 2^84655872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84655872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145083120).

84655872 is an abundant number, since it is smaller than the sum of its proper divisors (205510368).

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

84655872 is a wasteful number, since it uses less digits than its factorization.

84655872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 222 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 84655872 is about 9200.8625682596. The cubic root of 84655872 is about 439.0888030079.

The spelling of 84655872 in words is "eighty-four million, six hundred fifty-five thousand, eight hundred seventy-two".