90896985 has 40 divisors (see below), whose sum is σ = 164598720. Its totient is φ = 47985696.

The previous prime is 90896951. The next prime is 90896999. The reversal of 90896985 is 58969809.

It is not a de Polignac number, because 90896985 - 2⁶ = 90896921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40626 + ... + 42804.

It is an arithmetic number, because the mean of its divisors is an integer number (4114968).

Almost surely, 2^90896985 is an apocalyptic number.

It is an amenable number.

90896985 is a deficient number, since it is larger than the sum of its proper divisors (73701735).

90896985 is a wasteful number, since it uses less digits than its factorization.

90896985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The square root of 90896985 is about 9533.9910320914. The cubic root of 90896985 is about 449.6243531750.

The spelling of 90896985 in words is "ninety million, eight hundred ninety-six thousand, nine hundred eighty-five".