6722979 has 16 divisors (see below), whose sum is σ = 9561600. Its totient is φ = 4189536.

The previous prime is 6722957. The next prime is 6722987. The reversal of 6722979 is 9792276.

6722979 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 6722979 - 2¹³ = 6714787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6722979.

It is not an unprimeable number, because it can be changed into a prime (6722909) 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, 3757 + ... + 5249.

It is an arithmetic number, because the mean of its divisors is an integer number (597600).

Almost surely, 2^6722979 is an apocalyptic number.

6722979 is a deficient number, since it is larger than the sum of its proper divisors (2838621).

6722979 is a wasteful number, since it uses less digits than its factorization.

6722979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594.

The product of its digits is 95256, while the sum is 42.

The square root of 6722979 is about 2592.8708027975. The cubic root of 6722979 is about 188.7356400344.

The spelling of 6722979 in words is "six million, seven hundred twenty-two thousand, nine hundred seventy-nine".