90007816 has 16 divisors (see below), whose sum is σ = 168953040. Its totient is φ = 44953680.

The previous prime is 90007721. The next prime is 90007817. The reversal of 90007816 is 61870009.

It is not an unprimeable number, because it can be changed into a prime (90007817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1975 + ... + 13561.

It is an arithmetic number, because the mean of its divisors is an integer number (10559565).

Almost surely, 2^90007816 is an apocalyptic number.

It is an amenable number.

90007816 is a deficient number, since it is larger than the sum of its proper divisors (78945224).

90007816 is a wasteful number, since it uses less digits than its factorization.

90007816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12564 (or 12560 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 90007816 is about 9487.2449109317. The cubic root of 90007816 is about 448.1534471170.

The spelling of 90007816 in words is "ninety million, seven thousand, eight hundred sixteen".