89868980 has 24 divisors (see below), whose sum is σ = 189001512. Its totient is φ = 35894912.

The previous prime is 89868971. The next prime is 89868983. The reversal of 89868980 is 8986898.

It can be written as a sum of positive squares in 4 ways, for example, as 2184484 + 87684496 = 1478^2 + 9364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89868983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12554 + ... + 18366.

It is an arithmetic number, because the mean of its divisors is an integer number (7875063).

Almost surely, 2^89868980 is an apocalyptic number.

It is an amenable number.

89868980 is an abundant number, since it is smaller than the sum of its proper divisors (99132532).

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

89868980 is a wasteful number, since it uses less digits than its factorization.

89868980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6595 (or 6593 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 56.

The square root of 89868980 is about 9479.9251051894. The cubic root of 89868980 is about 447.9229047289.

The spelling of 89868980 in words is "eighty-nine million, eight hundred sixty-eight thousand, nine hundred eighty".