6843994 has 16 divisors (see below), whose sum is σ = 10676736. Its totient is φ = 3286800.

The previous prime is 6843989. The next prime is 6843997. The reversal of 6843994 is 4993486.

It is a self number, because there is not a number n which added to its sum of digits gives 6843994.

It is not an unprimeable number, because it can be changed into a prime (6843997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10024 + ... + 10684.

It is an arithmetic number, because the mean of its divisors is an integer number (667296).

Almost surely, 2^6843994 is an apocalyptic number.

6843994 is a deficient number, since it is larger than the sum of its proper divisors (3832742).

6843994 is a wasteful number, since it uses less digits than its factorization.

6843994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861.

The product of its digits is 186624, while the sum is 43.

The square root of 6843994 is about 2616.1028267253. The cubic root of 6843994 is about 189.8613392742.

The spelling of 6843994 in words is "six million, eight hundred forty-three thousand, nine hundred ninety-four".