6911969 has 2 divisors, whose sum is σ = 6911970. Its totient is φ = 6911968.

The previous prime is 6911959. The next prime is 6911987. The reversal of 6911969 is 9691196.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5234944 + 1677025 = 2288^2 + 1295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6911969 is a prime.

It is a super-2 number, since 2×6911969² = 95550630913922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6911939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3455984 + 3455985.

It is an arithmetic number, because the mean of its divisors is an integer number (3455985).

Almost surely, 2^6911969 is an apocalyptic number.

It is an amenable number.

6911969 is a deficient number, since it is larger than the sum of its proper divisors (1).

6911969 is an equidigital number, since it uses as much as digits as its factorization.

6911969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26244, while the sum is 41.

The square root of 6911969 is about 2629.0623803934. The cubic root of 6911969 is about 190.4878414589.

The spelling of 6911969 in words is "six million, nine hundred eleven thousand, nine hundred sixty-nine".