86172192 has 54 divisors (see below), whose sum is σ = 245500983. Its totient is φ = 28671552.

The previous prime is 86172143. The next prime is 86172259. The reversal of 86172192 is 29127168.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 43086096 + 43086096 = 6564^2 + 6564^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6564.

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

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 157263 + ... + 157809.

Almost surely, 2^86172192 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 86172192

86172192 is an abundant number, since it is smaller than the sum of its proper divisors (159328791).

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

86172192 is an equidigital number, since it uses as much as digits as its factorization.

86172192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 552 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 86172192 is about 9282.8978234170. The cubic root of 86172192 is about 441.6948953280.

The spelling of 86172192 in words is "eighty-six million, one hundred seventy-two thousand, one hundred ninety-two".