90858115 has 16 divisors (see below), whose sum is σ = 115763040. Its totient is φ = 68221440.

The previous prime is 90858113. The next prime is 90858143. The reversal of 90858115 is 51185809.

It is not a de Polignac number, because 90858115 - 2¹ = 90858113 is a prime.

It is a super-2 number, since 2×90858115² = 16510394122706450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90858113) 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, 34516 + ... + 37054.

It is an arithmetic number, because the mean of its divisors is an integer number (7235190).

Almost surely, 2^90858115 is an apocalyptic number.

90858115 is a deficient number, since it is larger than the sum of its proper divisors (24904925).

90858115 is a wasteful number, since it uses less digits than its factorization.

90858115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982.

The product of its (nonzero) digits is 14400, while the sum is 37.

The square root of 90858115 is about 9531.9523183868. The cubic root of 90858115 is about 449.5602535410.

The spelling of 90858115 in words is "ninety million, eight hundred fifty-eight thousand, one hundred fifteen".