90938502 has 24 divisors (see below), whose sum is σ = 197888184. Its totient is φ = 30181344.

The previous prime is 90938501. The next prime is 90938521. The reversal of 90938502 is 20583909.

It is a super-2 number, since 2×90938502² = 16539622292008008, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90938501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6648 + ... + 15035.

It is an arithmetic number, because the mean of its divisors is an integer number (8245341).

Almost surely, 2^90938502 is an apocalyptic number.

90938502 is an abundant number, since it is smaller than the sum of its proper divisors (106949682).

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

90938502 is a wasteful number, since it uses less digits than its factorization.

90938502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21924 (or 21921 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 90938502 is about 9536.1680983506. The cubic root of 90938502 is about 449.6927977368.

The spelling of 90938502 in words is "ninety million, nine hundred thirty-eight thousand, five hundred two".