6997977 has 24 divisors (see below), whose sum is σ = 11666304. Its totient is φ = 3959424.

The previous prime is 6997967. The next prime is 6998009. The reversal of 6997977 is 7797996.

It is not a de Polignac number, because 6997977 - 2⁷ = 6997849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6997927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6628 + ... + 7610.

It is an arithmetic number, because the mean of its divisors is an integer number (486096).

Almost surely, 2^6997977 is an apocalyptic number.

It is an amenable number.

6997977 is a deficient number, since it is larger than the sum of its proper divisors (4668327).

6997977 is a wasteful number, since it uses less digits than its factorization.

6997977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1106 counting only the distinct ones).

The product of its digits is 1500282, while the sum is 54.

The square root of 6997977 is about 2645.3689723742. The cubic root of 6997977 is about 191.2746885980.

The spelling of 6997977 in words is "six million, nine hundred ninety-seven thousand, nine hundred seventy-seven".