86517172 has 12 divisors (see below), whose sum is σ = 173034400. Its totient is φ = 37078776.

The previous prime is 86517169. The next prime is 86517181. The reversal of 86517172 is 27171568.

86517172 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1544922 + ... + 1544977.

Almost surely, 2^86517172 is an apocalyptic number.

It is an amenable number.

86517172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

86517172 is a wasteful number, since it uses less digits than its factorization.

86517172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089910 (or 3089908 counting only the distinct ones).

The product of its digits is 23520, while the sum is 37.

The square root of 86517172 is about 9301.4607454958. The cubic root of 86517172 is about 442.2835346286.

The spelling of 86517172 in words is "eighty-six million, five hundred seventeen thousand, one hundred seventy-two".