90680072 has 16 divisors (see below), whose sum is σ = 194314560. Its totient is φ = 38862864.

The previous prime is 90680041. The next prime is 90680087. The reversal of 90680072 is 27008609.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 809588 + ... + 809699.

It is an arithmetic number, because the mean of its divisors is an integer number (12144660).

Almost surely, 2^90680072 is an apocalyptic number.

It is an amenable number.

90680072 is an abundant number, since it is smaller than the sum of its proper divisors (103634488).

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

90680072 is a wasteful number, since it uses less digits than its factorization.

90680072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619300 (or 1619296 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 90680072 is about 9522.6084661714. The cubic root of 90680072 is about 449.2664129916.

The spelling of 90680072 in words is "ninety million, six hundred eighty thousand, seventy-two".