90986998 has 16 divisors (see below), whose sum is σ = 137833920. Its totient is φ = 45045000.

The previous prime is 90986927. The next prime is 90987019. The reversal of 90986998 is 89968909.

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, 105493 + ... + 106351.

It is an arithmetic number, because the mean of its divisors is an integer number (8614620).

Almost surely, 2^90986998 is an apocalyptic number.

90986998 is a deficient number, since it is larger than the sum of its proper divisors (46846922).

90986998 is a wasteful number, since it uses less digits than its factorization.

90986998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323.

The product of its (nonzero) digits is 2519424, while the sum is 58.

The square root of 90986998 is about 9538.7104998527. The cubic root of 90986998 is about 449.7727214432.

The spelling of 90986998 in words is "ninety million, nine hundred eighty-six thousand, nine hundred ninety-eight".