899390115 has 96 divisors (see below), whose sum is σ = 1756800000. Its totient is φ = 436295808.

The previous prime is 899390113. The next prime is 899390143. The reversal of 899390115 is 511093998.

It is not a de Polignac number, because 899390115 - 2¹ = 899390113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (899390113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1802136 + ... + 1802634.

It is an arithmetic number, because the mean of its divisors is an integer number (18300000).

Almost surely, 2^899390115 is an apocalyptic number.

899390115 is a deficient number, since it is larger than the sum of its proper divisors (857409885).

899390115 is a wasteful number, since it uses less digits than its factorization.

899390115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 899390115 is about 29989.8335273806. The cubic root of 899390115 is about 965.2712473641.

The spelling of 899390115 in words is "eight hundred ninety-nine million, three hundred ninety thousand, one hundred fifteen".