89090816 has 18 divisors (see below), whose sum is σ = 177834132. Its totient is φ = 44545280.

The previous prime is 89090801. The next prime is 89090819. The reversal of 89090816 is 61809098.

It is not an unprimeable number, because it can be changed into a prime (89090819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173750 + ... + 174261.

It is an arithmetic number, because the mean of its divisors is an integer number (9879674).

Almost surely, 2^89090816 is an apocalyptic number.

It is an amenable number.

89090816 is a deficient number, since it is larger than the sum of its proper divisors (88743316).

89090816 is an equidigital number, since it uses as much as digits as its factorization.

89090816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348027 (or 348013 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 89090816 is about 9438.7931431937. The cubic root of 89090816 is about 446.6263194664.

The spelling of 89090816 in words is "eighty-nine million, ninety thousand, eight hundred sixteen".