899989994 has 8 divisors (see below), whose sum is σ = 1355779620. Its totient is φ = 448063456.

The previous prime is 899989933. The next prime is 899990009. The reversal of 899989994 is 499989998.

899989994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 896703025 + 3286969 = 29945^2 + 1813^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 965189 + ... + 966120.

Almost surely, 2^899989994 is an apocalyptic number.

899989994 is a deficient number, since it is larger than the sum of its proper divisors (455789626).

899989994 is a wasteful number, since it uses less digits than its factorization.

899989994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931544.

The product of its digits is 136048896, while the sum is 74.

The square root of 899989994 is about 29999.8332328698. The cubic root of 899989994 is about 965.4858065602.

The spelling of 899989994 in words is "eight hundred ninety-nine million, nine hundred eighty-nine thousand, nine hundred ninety-four".