6977969 has 2 divisors, whose sum is σ = 6977970. Its totient is φ = 6977968.

The previous prime is 6977923. The next prime is 6978001. The reversal of 6977969 is 9697796.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6864400 + 113569 = 2620^2 + 337^2 .

It is a cyclic number.

It is not a de Polignac number, because 6977969 - 2¹² = 6973873 is a prime.

It is a super-2 number, since 2×6977969² = 97384102729922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6977969.

It is not a weakly prime, because it can be changed into another prime (6977569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3488984 + 3488985.

It is an arithmetic number, because the mean of its divisors is an integer number (3488985).

Almost surely, 2^6977969 is an apocalyptic number.

It is an amenable number.

6977969 is a deficient number, since it is larger than the sum of its proper divisors (1).

6977969 is an equidigital number, since it uses as much as digits as its factorization.

6977969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1285956, while the sum is 53.

The square root of 6977969 is about 2641.5845623413. The cubic root of 6977969 is about 191.0922226715.

The spelling of 6977969 in words is "six million, nine hundred seventy-seven thousand, nine hundred sixty-nine".