6844661 has 4 divisors (see below), whose sum is σ = 6850752. Its totient is φ = 6838572.

The previous prime is 6844637. The next prime is 6844687. The reversal of 6844661 is 1664486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6844661 - 2⁶ = 6844597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6844601) 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, 815 + ... + 3788.

It is an arithmetic number, because the mean of its divisors is an integer number (1712688).

Almost surely, 2^6844661 is an apocalyptic number.

It is an amenable number.

6844661 is a deficient number, since it is larger than the sum of its proper divisors (6091).

6844661 is a wasteful number, since it uses less digits than its factorization.

6844661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6090.

The product of its digits is 27648, while the sum is 35.

The square root of 6844661 is about 2616.2303033181. The cubic root of 6844661 is about 189.8675068911.

The spelling of 6844661 in words is "six million, eight hundred forty-four thousand, six hundred sixty-one".