90998516 has 48 divisors (see below), whose sum is σ = 192525312. Its totient is φ = 36806400.

The previous prime is 90998507. The next prime is 90998539. The reversal of 90998516 is 61589909.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34310 + ... + 36866.

It is an arithmetic number, because the mean of its divisors is an integer number (4010944).

Almost surely, 2^90998516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90998516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96262656).

90998516 is an abundant number, since it is smaller than the sum of its proper divisors (101526796).

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

90998516 is a wasteful number, since it uses less digits than its factorization.

90998516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640 (or 2638 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 47.

The square root of 90998516 is about 9539.3142311175. The cubic root of 90998516 is about 449.7916994794.

The spelling of 90998516 in words is "ninety million, nine hundred ninety-eight thousand, five hundred sixteen".