90494775 has 36 divisors (see below), whose sum is σ = 185244592. Its totient is φ = 41368320.

The previous prime is 90494741. The next prime is 90494783. The reversal of 90494775 is 57749409.

90494775 is a `hidden beast` number, since 90 + 494 + 7 + 75 = 666.

It is not a de Polignac number, because 90494775 - 2¹² = 90490679 is a prime.

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

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 90494775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27154 + ... + 30303.

Almost surely, 2^90494775 is an apocalyptic number.

90494775 is an abundant number, since it is smaller than the sum of its proper divisors (94749817).

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

90494775 is a wasteful number, since it uses less digits than its factorization.

90494775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57480 (or 57472 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 90494775 is about 9512.8741713533. The cubic root of 90494775 is about 448.9601917740.

It can be divided in two parts, 9049 and 4775, that added together give a cube (13824 = 24³).

The spelling of 90494775 in words is "ninety million, four hundred ninety-four thousand, seven hundred seventy-five".