90668328 has 32 divisors (see below), whose sum is σ = 226929600. Its totient is φ = 30188288.

The previous prime is 90668321. The next prime is 90668329. The reversal of 90668328 is 82386609.

It is a self number, because there is not a number n which added to its sum of digits gives 90668328.

It is not an unprimeable number, because it can be changed into a prime (90668321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27808 + ... + 30896.

It is an arithmetic number, because the mean of its divisors is an integer number (7091550).

Almost surely, 2^90668328 is an apocalyptic number.

It is an amenable number.

90668328 is an abundant number, since it is smaller than the sum of its proper divisors (136261272).

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

90668328 is a wasteful number, since it uses less digits than its factorization.

90668328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4321 (or 4317 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 90668328 is about 9521.9918084401. The cubic root of 90668328 is about 449.2470172838.

The spelling of 90668328 in words is "ninety million, six hundred sixty-eight thousand, three hundred twenty-eight".