6986977 has 2 divisors, whose sum is σ = 6986978. Its totient is φ = 6986976.

The previous prime is 6986911. The next prime is 6986981. The reversal of 6986977 is 7796896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4769856 + 2217121 = 2184^2 + 1489^2 .

It is a cyclic number.

It is not a de Polignac number, because 6986977 - 2⁷ = 6986849 is a prime.

It is not a weakly prime, because it can be changed into another prime (6980977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3493488 + 3493489.

It is an arithmetic number, because the mean of its divisors is an integer number (3493489).

Almost surely, 2^6986977 is an apocalyptic number.

It is an amenable number.

6986977 is a deficient number, since it is larger than the sum of its proper divisors (1).

6986977 is an equidigital number, since it uses as much as digits as its factorization.

6986977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 52.

The square root of 6986977 is about 2643.2890496501. The cubic root of 6986977 is about 191.1744155732.

The spelling of 6986977 in words is "six million, nine hundred eighty-six thousand, nine hundred seventy-seven".