84059172 has 36 divisors (see below), whose sum is σ = 215482176. Its totient is φ = 27624240.

The previous prime is 84059161. The next prime is 84059221. The reversal of 84059172 is 27195048.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 13888 + ... + 18999.

It is an arithmetic number, because the mean of its divisors is an integer number (5985616).

Almost surely, 2^84059172 is an apocalyptic number.

It is an amenable number.

84059172 is an abundant number, since it is smaller than the sum of its proper divisors (131423004).

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

84059172 is a wasteful number, since it uses less digits than its factorization.

84059172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32968 (or 32963 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 84059172 is about 9168.3789188711. The cubic root of 84059172 is about 438.0547251319.

The spelling of 84059172 in words is "eighty-four million, fifty-nine thousand, one hundred seventy-two".