84161172 has 12 divisors (see below), whose sum is σ = 196376096. Its totient is φ = 28053720.

The previous prime is 84161131. The next prime is 84161183. The reversal of 84161172 is 27116148.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3506704 + ... + 3506727.

Almost surely, 2^84161172 is an apocalyptic number.

It is an amenable number.

84161172 is an abundant number, since it is smaller than the sum of its proper divisors (112214924).

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

84161172 is a wasteful number, since it uses less digits than its factorization.

84161172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013438 (or 7013436 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 84161172 is about 9173.9398297569. The cubic root of 84161172 is about 438.2318365658.

The spelling of 84161172 in words is "eighty-four million, one hundred sixty-one thousand, one hundred seventy-two".