6995977 has 2 divisors, whose sum is σ = 6995978. Its totient is φ = 6995976.

The previous prime is 6995957. The next prime is 6995983. The reversal of 6995977 is 7795996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5659641 + 1336336 = 2379^2 + 1156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6995977 is a prime.

It is not a weakly prime, because it can be changed into another prime (6995927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3497988 + 3497989.

It is an arithmetic number, because the mean of its divisors is an integer number (3497989).

Almost surely, 2^6995977 is an apocalyptic number.

It is an amenable number.

6995977 is a deficient number, since it is larger than the sum of its proper divisors (1).

6995977 is an equidigital number, since it uses as much as digits as its factorization.

6995977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1071630, while the sum is 52.

The square root of 6995977 is about 2644.9909262604. The cubic root of 6995977 is about 191.2564649587.

The spelling of 6995977 in words is "six million, nine hundred ninety-five thousand, nine hundred seventy-seven".