6979667 has 2 divisors, whose sum is σ = 6979668. Its totient is φ = 6979666.

The previous prime is 6979663. The next prime is 6979697. The reversal of 6979667 is 7669796.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6979667 - 2² = 6979663 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (6979663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3489833 + 3489834.

It is an arithmetic number, because the mean of its divisors is an integer number (3489834).

Almost surely, 2^6979667 is an apocalyptic number.

6979667 is a deficient number, since it is larger than the sum of its proper divisors (1).

6979667 is an equidigital number, since it uses as much as digits as its factorization.

6979667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 50.

The square root of 6979667 is about 2641.9059407935. The cubic root of 6979667 is about 191.1077213684.

The spelling of 6979667 in words is "six million, nine hundred seventy-nine thousand, six hundred sixty-seven".