90708868 has 12 divisors (see below), whose sum is σ = 164214540. Its totient is φ = 43790432.

The previous prime is 90708859. The next prime is 90708881. The reversal of 90708868 is 86880709.

It can be written as a sum of positive squares in 2 ways, for example, as 59259204 + 31449664 = 7698^2 + 5608^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390871 + ... + 391102.

It is an arithmetic number, because the mean of its divisors is an integer number (13684545).

Almost surely, 2^90708868 is an apocalyptic number.

It is an amenable number.

90708868 is a deficient number, since it is larger than the sum of its proper divisors (73505672).

90708868 is a wasteful number, since it uses less digits than its factorization.

90708868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782006 (or 782004 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 90708868 is about 9524.1203268333. The cubic root of 90708868 is about 449.3139637054.

The spelling of 90708868 in words is "ninety million, seven hundred eight thousand, eight hundred sixty-eight".