86982156 has 72 divisors (see below), whose sum is σ = 232622208. Its totient is φ = 27360000.

The previous prime is 86982139. The next prime is 86982193. The reversal of 86982156 is 65128968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44806 + ... + 46706.

It is an arithmetic number, because the mean of its divisors is an integer number (3230864).

Almost surely, 2^86982156 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 86982156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116311104).

86982156 is an abundant number, since it is smaller than the sum of its proper divisors (145640052).

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

86982156 is a wasteful number, since it uses less digits than its factorization.

86982156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983 (or 1978 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 86982156 is about 9326.4224652329. The cubic root of 86982156 is about 443.0744659931.

The spelling of 86982156 in words is "eighty-six million, nine hundred eighty-two thousand, one hundred fifty-six".