89715715 has 24 divisors (see below), whose sum is σ = 116885952. Its totient is φ = 66063360.

The previous prime is 89715631. The next prime is 89715733. The reversal of 89715715 is 51751798.

It is not a de Polignac number, because 89715715 - 2¹³ = 89707523 is a prime.

It is a super-2 number, since 2×89715715² = 16097819035922450, which contains 22 as substring.

It is a Duffinian 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, 67255 + ... + 68575.

It is an arithmetic number, because the mean of its divisors is an integer number (4870248).

Almost surely, 2^89715715 is an apocalyptic number.

89715715 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

89715715 is a deficient number, since it is larger than the sum of its proper divisors (27170237).

89715715 is a wasteful number, since it uses less digits than its factorization.

89715715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407 (or 1390 counting only the distinct ones).

The product of its digits is 88200, while the sum is 43.

The square root of 89715715 is about 9471.8379948139. The cubic root of 89715715 is about 447.6681265419.

The spelling of 89715715 in words is "eighty-nine million, seven hundred fifteen thousand, seven hundred fifteen".