90375915 has 32 divisors (see below), whose sum is σ = 165689856. Its totient is φ = 41207040.

The previous prime is 90375899. The next prime is 90375937. The reversal of 90375915 is 51957309.

It is not a de Polignac number, because 90375915 - 2⁴ = 90375899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50679 + ... + 52431.

It is an arithmetic number, because the mean of its divisors is an integer number (5177808).

Almost surely, 2^90375915 is an apocalyptic number.

90375915 is a deficient number, since it is larger than the sum of its proper divisors (75313941).

90375915 is a wasteful number, since it uses less digits than its factorization.

90375915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259.

The product of its (nonzero) digits is 42525, while the sum is 39.

The square root of 90375915 is about 9506.6247953730. The cubic root of 90375915 is about 448.7635439978.

The spelling of 90375915 in words is "ninety million, three hundred seventy-five thousand, nine hundred fifteen".