90116980 has 12 divisors (see below), whose sum is σ = 189245700. Its totient is φ = 36046784.

The previous prime is 90116953. The next prime is 90116987. The reversal of 90116980 is 8961109.

It can be written as a sum of positive squares in 2 ways, for example, as 68326756 + 21790224 = 8266^2 + 4668^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90116987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2252905 + ... + 2252944.

It is an arithmetic number, because the mean of its divisors is an integer number (15770475).

Almost surely, 2^90116980 is an apocalyptic number.

It is an amenable number.

90116980 is an abundant number, since it is smaller than the sum of its proper divisors (99128720).

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

90116980 is a wasteful number, since it uses less digits than its factorization.

90116980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4505858 (or 4505856 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 90116980 is about 9492.9963657425. The cubic root of 90116980 is about 448.3345516044.

The spelling of 90116980 in words is "ninety million, one hundred sixteen thousand, nine hundred eighty".