6844866 has 16 divisors (see below), whose sum is σ = 15645504. Its totient is φ = 1955664.

The previous prime is 6844861. The next prime is 6844907. The reversal of 6844866 is 6684486.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 162973 = 6844866 / (6 + 8 + 4 + 4 + 8 + 6 + 6).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6844861) 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, 81445 + ... + 81528.

It is an arithmetic number, because the mean of its divisors is an integer number (977844).

Almost surely, 2^6844866 is an apocalyptic number.

6844866 is an abundant number, since it is smaller than the sum of its proper divisors (8800638).

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

6844866 is a wasteful number, since it uses less digits than its factorization.

6844866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162985.

The product of its digits is 221184, while the sum is 42.

The square root of 6844866 is about 2616.2694815328. The cubic root of 6844866 is about 189.8694024050.

The spelling of 6844866 in words is "six million, eight hundred forty-four thousand, eight hundred sixty-six".