6396861 has 16 divisors (see below), whose sum is σ = 8826048. Its totient is φ = 4118400.

The previous prime is 6396857. The next prime is 6396869. The reversal of 6396861 is 1686936.

It is a happy number.

6396861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6396861 - 2² = 6396857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6396869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15915 + ... + 16311.

It is an arithmetic number, because the mean of its divisors is an integer number (551628).

Almost surely, 2^6396861 is an apocalyptic number.

It is an amenable number.

6396861 is a deficient number, since it is larger than the sum of its proper divisors (2429187).

6396861 is a wasteful number, since it uses less digits than its factorization.

6396861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572.

The product of its digits is 46656, while the sum is 39.

The square root of 6396861 is about 2529.2016526960. The cubic root of 6396861 is about 185.6331943236.

The spelling of 6396861 in words is "six million, three hundred ninety-six thousand, eight hundred sixty-one".