90897135 has 16 divisors (see below), whose sum is σ = 166212096. Its totient is φ = 41552928.

The previous prime is 90897109. The next prime is 90897139. The reversal of 90897135 is 53179809.

It is a happy number.

It is not a de Polignac number, because 90897135 - 2⁸ = 90896879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90897139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432739 + ... + 432948.

It is an arithmetic number, because the mean of its divisors is an integer number (10388256).

Almost surely, 2^90897135 is an apocalyptic number.

90897135 is a deficient number, since it is larger than the sum of its proper divisors (75314961).

90897135 is a wasteful number, since it uses less digits than its factorization.

90897135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865702.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 90897135 is about 9533.9988986784. The cubic root of 90897135 is about 449.6246005011.

The spelling of 90897135 in words is "ninety million, eight hundred ninety-seven thousand, one hundred thirty-five".