90002975 has 6 divisors (see below), whose sum is σ = 111603720. Its totient is φ = 72002360.

The previous prime is 90002971. The next prime is 90002977. The reversal of 90002975 is 57920009.

It is not a de Polignac number, because 90002975 - 2² = 90002971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90002971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1800035 + ... + 1800084.

It is an arithmetic number, because the mean of its divisors is an integer number (18600620).

Almost surely, 2^90002975 is an apocalyptic number.

90002975 is a deficient number, since it is larger than the sum of its proper divisors (21600745).

90002975 is a wasteful number, since it uses less digits than its factorization.

90002975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600129 (or 3600124 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 90002975 is about 9486.9897754767. The cubic root of 90002975 is about 448.1454124454.

The spelling of 90002975 in words is "ninety million, two thousand, nine hundred seventy-five".