899994 has 16 divisors (see below), whose sum is σ = 1830240. Its totient is φ = 294960.

The previous prime is 899981. The next prime is 900001. The reversal of 899994 is 499998.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 864 + ... + 1595.

It is an arithmetic number, because the mean of its divisors is an integer number (114390).

2⁸⁹⁹⁹⁹⁴ is an apocalyptic number.

899994 is an abundant number, since it is smaller than the sum of its proper divisors (930246).

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

899994 is a wasteful number, since it uses less digits than its factorization.

899994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525.

The product of its digits is 209952, while the sum is 48.

The square root of 899994 is about 948.6801357676. The cubic root of 899994 is about 96.5487239069.

The spelling of 899994 in words is "eight hundred ninety-nine thousand, nine hundred ninety-four".