90275 has 12 divisors (see below), whose sum is σ = 117552. Its totient is φ = 68640.

The previous prime is 90271. The next prime is 90281. The reversal of 90275 is 57209.

90275 is nontrivially palindromic in base 13.

90275 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 90275 - 2² = 90271 is a prime.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90275.

It is not an unprimeable number, because it can be changed into a prime (90271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 497 + ... + 653.

It is an arithmetic number, because the mean of its divisors is an integer number (9796).

2⁹⁰²⁷⁵ is an apocalyptic number.

90275 is a deficient number, since it is larger than the sum of its proper divisors (27277).

90275 is a wasteful number, since it uses less digits than its factorization.

90275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 90275 is about 300.4579837515. The cubic root of 90275 is about 44.8596449924.

The spelling of 90275 in words is "ninety thousand, two hundred seventy-five".