6722865 has 32 divisors (see below), whose sum is σ = 12585600. Its totient is φ = 3395520.

The previous prime is 6722861. The next prime is 6722869. The reversal of 6722865 is 5682276.

It is an interprime number because it is at equal distance from previous prime (6722861) and next prime (6722869).

It is not a de Polignac number, because 6722865 - 2² = 6722861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6722861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1255 + ... + 3875.

It is an arithmetic number, because the mean of its divisors is an integer number (393300).

Almost surely, 2^6722865 is an apocalyptic number.

It is an amenable number.

6722865 is a deficient number, since it is larger than the sum of its proper divisors (5862735).

6722865 is a wasteful number, since it uses less digits than its factorization.

6722865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654 (or 2648 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 6722865 is about 2592.8488193491. The cubic root of 6722865 is about 188.7345732462.

The spelling of 6722865 in words is "six million, seven hundred twenty-two thousand, eight hundred sixty-five".