90742275 has 84 divisors (see below), whose sum is σ = 182155008. Its totient is φ = 44556480.

The previous prime is 90742261. The next prime is 90742297. The reversal of 90742275 is 57224709.

It is not a de Polignac number, because 90742275 - 2¹⁰ = 90741251 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 236734 + ... + 237116.

It is an arithmetic number, because the mean of its divisors is an integer number (2168512).

Almost surely, 2^90742275 is an apocalyptic number.

90742275 is an abundant number, since it is smaller than the sum of its proper divisors (91412733).

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

90742275 is a wasteful number, since it uses less digits than its factorization.

90742275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 90742275 is about 9525.8739756518. The cubic root of 90742275 is about 449.3691159362.

The spelling of 90742275 in words is "ninety million, seven hundred forty-two thousand, two hundred seventy-five".