90090768 has 40 divisors (see below), whose sum is σ = 233074368. Its totient is φ = 29986432.

The previous prime is 90090757. The next prime is 90090779. The reversal of 90090768 is 86709009.

It is an interprime number because it is at equal distance from previous prime (90090757) and next prime (90090779).

It is an unprimeable number.

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, 64930 + ... + 66302.

Almost surely, 2^90090768 is an apocalyptic number.

It is an amenable number.

90090768 is an abundant number, since it is smaller than the sum of its proper divisors (142983600).

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

90090768 is a wasteful number, since it uses less digits than its factorization.

90090768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751 (or 2745 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 90090768 is about 9491.6156685782. The cubic root of 90090768 is about 448.2910789062.

The spelling of 90090768 in words is "ninety million, ninety thousand, seven hundred sixty-eight".