86908969 has 16 divisors (see below), whose sum is σ = 104947200. Its totient is φ = 70386624.

The previous prime is 86908963. The next prime is 86908999. The reversal of 86908969 is 96980968.

It is not a de Polignac number, because 86908969 - 2³ = 86908961 is a prime.

It is a super-2 number, since 2×86908969² = 15106337785285922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86908961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4987 + ... + 14095.

It is an arithmetic number, because the mean of its divisors is an integer number (6559200).

Almost surely, 2^86908969 is an apocalyptic number.

It is an amenable number.

86908969 is a deficient number, since it is larger than the sum of its proper divisors (18038231).

86908969 is a wasteful number, since it uses less digits than its factorization.

86908969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9192.

The product of its (nonzero) digits is 1679616, while the sum is 55.

The square root of 86908969 is about 9322.4980021451. The cubic root of 86908969 is about 442.9501631418.

The spelling of 86908969 in words is "eighty-six million, nine hundred eight thousand, nine hundred sixty-nine".