90320668 has 6 divisors (see below), whose sum is σ = 158061176. Its totient is φ = 45160332.

The previous prime is 90320647. The next prime is 90320669. The reversal of 90320668 is 86602309.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90320669) by changing a digit.

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 as a sum of consecutive naturals, namely, 11290080 + ... + 11290087.

Almost surely, 2^90320668 is an apocalyptic number.

It is an amenable number.

90320668 is a deficient number, since it is larger than the sum of its proper divisors (67740508).

90320668 is a wasteful number, since it uses less digits than its factorization.

90320668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22580171 (or 22580169 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 90320668 is about 9503.7186406164. The cubic root of 90320668 is about 448.6720819706.

The spelling of 90320668 in words is "ninety million, three hundred twenty thousand, six hundred sixty-eight".