90575664 has 20 divisors (see below), whose sum is σ = 233987256. Its totient is φ = 30191872.

The previous prime is 90575663. The next prime is 90575701. The reversal of 90575664 is 46657509.

It is not an unprimeable number, because it can be changed into a prime (90575663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943449 + ... + 943544.

Almost surely, 2^90575664 is an apocalyptic number.

It is an amenable number.

90575664 is an abundant number, since it is smaller than the sum of its proper divisors (143411592).

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

90575664 is a wasteful number, since it uses less digits than its factorization.

90575664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887004 (or 1886998 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 90575664 is about 9517.1247758974. The cubic root of 90575664 is about 449.0939200323.

The spelling of 90575664 in words is "ninety million, five hundred seventy-five thousand, six hundred sixty-four".