90275658 has 32 divisors (see below), whose sum is σ = 203323392. Its totient is φ = 26473200.

The previous prime is 90275651. The next prime is 90275659. The reversal of 90275658 is 85657209.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90275651) 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, 20016 + ... + 24107.

It is an arithmetic number, because the mean of its divisors is an integer number (6353856).

Almost surely, 2^90275658 is an apocalyptic number.

90275658 is an abundant number, since it is smaller than the sum of its proper divisors (113047734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90275658 is a wasteful number, since it uses less digits than its factorization.

90275658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44170.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 90275658 is about 9501.3503250854. The cubic root of 90275658 is about 448.5975398369.

The spelling of 90275658 in words is "ninety million, two hundred seventy-five thousand, six hundred fifty-eight".