6977764 has 6 divisors (see below), whose sum is σ = 12211094. Its totient is φ = 3488880.

The previous prime is 6977743. The next prime is 6977767. The reversal of 6977764 is 4677796.

It can be written as a sum of positive squares in only one way, i.e., 4875264 + 2102500 = 2208^2 + 1450^2 .

It is not an unprimeable number, because it can be changed into a prime (6977767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 872217 + ... + 872224.

Almost surely, 2^6977764 is an apocalyptic number.

It is an amenable number.

6977764 is a deficient number, since it is larger than the sum of its proper divisors (5233330).

6977764 is a wasteful number, since it uses less digits than its factorization.

6977764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744445 (or 1744443 counting only the distinct ones).

The product of its digits is 444528, while the sum is 46.

The square root of 6977764 is about 2641.5457595885. The cubic root of 6977764 is about 191.0903513396.

Subtracting from 6977764 its reverse (4677796), we obtain a cube (2299968 = 132³).

The spelling of 6977764 in words is "six million, nine hundred seventy-seven thousand, seven hundred sixty-four".