86998975 has 12 divisors (see below), whose sum is σ = 123290224. Its totient is φ = 59656320.

The previous prime is 86998963. The next prime is 86998997. The reversal of 86998975 is 57989968.

It is not a de Polignac number, because 86998975 - 2¹⁷ = 86867903 is a prime.

It is a Duffinian number.

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, 248394 + ... + 248743.

Almost surely, 2^86998975 is an apocalyptic number.

86998975 is a deficient number, since it is larger than the sum of its proper divisors (36291249).

86998975 is a wasteful number, since it uses less digits than its factorization.

86998975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497154 (or 497149 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 61.

The square root of 86998975 is about 9327.3241071596. The cubic root of 86998975 is about 443.1030220001.

The spelling of 86998975 in words is "eighty-six million, nine hundred ninety-eight thousand, nine hundred seventy-five".