84156912 has 90 divisors (see below), whose sum is σ = 273998088. Its totient is φ = 24042816.

The previous prime is 84156893. The next prime is 84156929. The reversal of 84156912 is 21965148.

84156912 is a `hidden beast` number, since 84 + 1 + 569 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1093 + ... + 13019.

Almost surely, 2^84156912 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 84156912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136999044).

84156912 is an abundant number, since it is smaller than the sum of its proper divisors (189841176).

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

84156912 is a wasteful number, since it uses less digits than its factorization.

84156912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11955 (or 11939 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 84156912 is about 9173.7076474019. The cubic root of 84156912 is about 438.2244424232.

The spelling of 84156912 in words is "eighty-four million, one hundred fifty-six thousand, nine hundred twelve".