84684156 has 12 divisors (see below), whose sum is σ = 197596392. Its totient is φ = 28228048.

The previous prime is 84684109. The next prime is 84684167. The reversal of 84684156 is 65148648.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3528495 + ... + 3528518.

It is an arithmetic number, because the mean of its divisors is an integer number (16466366).

Almost surely, 2^84684156 is an apocalyptic number.

It is an amenable number.

84684156 is an abundant number, since it is smaller than the sum of its proper divisors (112912236).

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

84684156 is a wasteful number, since it uses less digits than its factorization.

84684156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7057020 (or 7057018 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 84684156 is about 9202.3994697035. The cubic root of 84684156 is about 439.1376982374.

The spelling of 84684156 in words is "eighty-four million, six hundred eighty-four thousand, one hundred fifty-six".