90712668 has 24 divisors (see below), whose sum is σ = 212002560. Its totient is φ = 30189040.

The previous prime is 90712639. The next prime is 90712681. The reversal of 90712668 is 86621709.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2173 + ... + 13643.

It is an arithmetic number, because the mean of its divisors is an integer number (8833440).

Almost surely, 2^90712668 is an apocalyptic number.

It is an amenable number.

90712668 is an abundant number, since it is smaller than the sum of its proper divisors (121289892).

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

90712668 is a wasteful number, since it uses less digits than its factorization.

90712668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12137 (or 12135 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 90712668 is about 9524.3198182337. The cubic root of 90712668 is about 449.3202378778.

The spelling of 90712668 in words is "ninety million, seven hundred twelve thousand, six hundred sixty-eight".