6979328731 has 2 divisors, whose sum is σ = 6979328732. Its totient is φ = 6979328730.

The previous prime is 6979328717. The next prime is 6979328749. The reversal of 6979328731 is 1378239796.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6979328731 - 2¹⁵ = 6979295963 is a prime.

It is a super-2 number, since 2×6979328731² = 97422059070724140722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6979328791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3489664365 + 3489664366.

It is an arithmetic number, because the mean of its divisors is an integer number (3489664366).

Almost surely, 2^6979328731 is an apocalyptic number.

6979328731 is a deficient number, since it is larger than the sum of its proper divisors (1).

6979328731 is an equidigital number, since it uses as much as digits as its factorization.

6979328731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 55.

The square root of 6979328731 is about 83542.3768574967. The cubic root of 6979328731 is about 1911.0463397838.

The spelling of 6979328731 in words is "six billion, nine hundred seventy-nine million, three hundred twenty-eight thousand, seven hundred thirty-one".