90998874 has 12 divisors (see below), whose sum is σ = 197164266. Its totient is φ = 30332952.

The previous prime is 90998863. The next prime is 90998881. The reversal of 90998874 is 47889909.

It can be written as a sum of positive squares in only one way, i.e., 89019225 + 1979649 = 9435^2 + 1407^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 90998874.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2527729 + ... + 2527764.

Almost surely, 2^90998874 is an apocalyptic number.

90998874 is an abundant number, since it is smaller than the sum of its proper divisors (106165392).

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

90998874 is a wasteful number, since it uses less digits than its factorization.

90998874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055501 (or 5055498 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 90998874 is about 9539.3329955506. The cubic root of 90998874 is about 449.7922893250.

The spelling of 90998874 in words is "ninety million, nine hundred ninety-eight thousand, eight hundred seventy-four".