899373999 has 32 divisors (see below), whose sum is σ = 1248952320. Its totient is φ = 575314272.

The previous prime is 899373989. The next prime is 899374027. The reversal of 899373999 is 999373998.

It is a happy number.

It is not a de Polignac number, because 899373999 - 2⁸ = 899373743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899373919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2929404 + ... + 2929710.

It is an arithmetic number, because the mean of its divisors is an integer number (39029760).

Almost surely, 2^899373999 is an apocalyptic number.

899373999 is a deficient number, since it is larger than the sum of its proper divisors (349578321).

899373999 is a wasteful number, since it uses less digits than its factorization.

899373999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699.

The product of its digits is 29760696, while the sum is 66.

The square root of 899373999 is about 29989.5648351222. The cubic root of 899373999 is about 965.2654818259.

Subtracting 899373999 from its reverse (999373998), we obtain a palindrome (99999999).

The spelling of 899373999 in words is "eight hundred ninety-nine million, three hundred seventy-three thousand, nine hundred ninety-nine".