839994 has 8 divisors (see below), whose sum is σ = 1680000. Its totient is φ = 279996.

The previous prime is 839981. The next prime is 839999. The reversal of 839994 is 499938.

839994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

839994 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (839999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69994 + ... + 70005.

It is an arithmetic number, because the mean of its divisors is an integer number (210000).

2⁸³⁹⁹⁹⁴ is an apocalyptic number.

839994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

839994 is a wasteful number, since it uses less digits than its factorization.

839994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140004.

The product of its digits is 69984, while the sum is 42.

The square root of 839994 is about 916.5118657170. The cubic root of 839994 is about 94.3536549537.

The spelling of 839994 in words is "eight hundred thirty-nine thousand, nine hundred ninety-four".