90691522 has 16 divisors (see below), whose sum is σ = 143825760. Its totient is φ = 42770592.

The previous prime is 90691499. The next prime is 90691577. The reversal of 90691522 is 22519609.

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, 3733 + ... + 13975.

It is an arithmetic number, because the mean of its divisors is an integer number (8989110).

Almost surely, 2^90691522 is an apocalyptic number.

90691522 is a deficient number, since it is larger than the sum of its proper divisors (53134238).

90691522 is a wasteful number, since it uses less digits than its factorization.

90691522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10497.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 90691522 is about 9523.2096480126. The cubic root of 90691522 is about 449.2853215339.

The spelling of 90691522 in words is "ninety million, six hundred ninety-one thousand, five hundred twenty-two".