90899522 has 16 divisors (see below), whose sum is σ = 155950272. Its totient is φ = 38926320.

The previous prime is 90899521. The next prime is 90899537. The reversal of 90899522 is 22599809.

It is not an unprimeable number, because it can be changed into a prime (90899521) 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, 32408 + ... + 35100.

It is an arithmetic number, because the mean of its divisors is an integer number (9746892).

Almost surely, 2^90899522 is an apocalyptic number.

90899522 is a deficient number, since it is larger than the sum of its proper divisors (65050750).

90899522 is a wasteful number, since it uses less digits than its factorization.

90899522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 90899522 is about 9534.1240814246. The cubic root of 90899522 is about 449.6285362487.

The spelling of 90899522 in words is "ninety million, eight hundred ninety-nine thousand, five hundred twenty-two".