899999994 has 16 divisors (see below), whose sum is σ = 1801409760. Its totient is φ = 299765040.

The previous prime is 899999963. The next prime is 900000011. The reversal of 899999994 is 499999998.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 50349 + ... + 65840.

It is an arithmetic number, because the mean of its divisors is an integer number (112588110).

Almost surely, 2^899999994 is an apocalyptic number.

899999994 is an abundant number, since it is smaller than the sum of its proper divisors (901409766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

899999994 is a wasteful number, since it uses less digits than its factorization.

899999994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117485.

The product of its digits is 153055008, while the sum is 75.

The square root of 899999994 is about 29999.9999000000. Note that the first 4 decimals coincide. The cubic root of 899999994 is about 965.4893824601.

The spelling of 899999994 in words is "eight hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-four".