90465975 has 18 divisors (see below), whose sum is σ = 162035016. Its totient is φ = 48248400.

The previous prime is 90465961. The next prime is 90465979. The reversal of 90465975 is 57956409.

It is a happy number.

It is not a de Polignac number, because 90465975 - 2⁶ = 90465911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 90465975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90465979) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 200811 + ... + 201260.

Almost surely, 2^90465975 is an apocalyptic number.

90465975 is a deficient number, since it is larger than the sum of its proper divisors (71569041).

90465975 is a wasteful number, since it uses less digits than its factorization.

90465975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402087 (or 402079 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 90465975 is about 9511.3603128049. The cubic root of 90465975 is about 448.9125594643.

The spelling of 90465975 in words is "ninety million, four hundred sixty-five thousand, nine hundred seventy-five".