90485775 has 24 divisors (see below), whose sum is σ = 166226960. Its totient is φ = 48258720.

The previous prime is 90485743. The next prime is 90485797. The reversal of 90485775 is 57758409.

It is not a de Polignac number, because 90485775 - 2⁵ = 90485743 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 90485775.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66352 + ... + 67701.

Almost surely, 2^90485775 is an apocalyptic number.

90485775 is a deficient number, since it is larger than the sum of its proper divisors (75741185).

90485775 is a wasteful number, since it uses less digits than its factorization.

90485775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134072 (or 134061 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 90485775 is about 9512.4011164374. The cubic root of 90485775 is about 448.9453077630.

The spelling of 90485775 in words is "ninety million, four hundred eighty-five thousand, seven hundred seventy-five".