90668722 has 32 divisors (see below), whose sum is σ = 149659200. Its totient is φ = 41041728.

The previous prime is 90668717. The next prime is 90668723. The reversal of 90668722 is 22786609.

It is a super-2 number, since 2×90668722² = 16441634298226568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90668723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82408 + ... + 83500.

It is an arithmetic number, because the mean of its divisors is an integer number (4676850).

Almost surely, 2^90668722 is an apocalyptic number.

90668722 is a deficient number, since it is larger than the sum of its proper divisors (58990478).

90668722 is a wasteful number, since it uses less digits than its factorization.

90668722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 90668722 is about 9522.0124973663. The cubic root of 90668722 is about 449.2476680185.

The spelling of 90668722 in words is "ninety million, six hundred sixty-eight thousand, seven hundred twenty-two".