90599622 has 16 divisors (see below), whose sum is σ = 189077760. Its totient is φ = 28886792.

The previous prime is 90599617. The next prime is 90599623. The reversal of 90599622 is 22699509.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90599623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328122 + ... + 328397.

It is an arithmetic number, because the mean of its divisors is an integer number (11817360).

Almost surely, 2^90599622 is an apocalyptic number.

90599622 is an abundant number, since it is smaller than the sum of its proper divisors (98478138).

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

90599622 is a wasteful number, since it uses less digits than its factorization.

90599622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656547.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 90599622 is about 9518.3833711403. The cubic root of 90599622 is about 449.1335128735.

It can be divided in two parts, 9059 and 9622, that added together give a palindrome (18681).

The spelling of 90599622 in words is "ninety million, five hundred ninety-nine thousand, six hundred twenty-two".