90889768 has 32 divisors (see below), whose sum is σ = 185184000. Its totient is φ = 41662080.

The previous prime is 90889763. The next prime is 90889783. The reversal of 90889768 is 86798809.

It is not an unprimeable number, because it can be changed into a prime (90889763) 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, 4933 + ... + 14356.

It is an arithmetic number, because the mean of its divisors is an integer number (5787000).

Almost surely, 2^90889768 is an apocalyptic number.

It is an amenable number.

90889768 is an abundant number, since it is smaller than the sum of its proper divisors (94294232).

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

90889768 is a wasteful number, since it uses less digits than its factorization.

90889768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19345 (or 19341 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 55.

The square root of 90889768 is about 9533.6125367040. The cubic root of 90889768 is about 449.6124531659.

The spelling of 90889768 in words is "ninety million, eight hundred eighty-nine thousand, seven hundred sixty-eight".