6977678 has 4 divisors (see below), whose sum is σ = 10466520. Its totient is φ = 3488838.

The previous prime is 6977639. The next prime is 6977681. The reversal of 6977678 is 8767796.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1744418 + ... + 1744421.

It is an arithmetic number, because the mean of its divisors is an integer number (2616630).

Almost surely, 2^6977678 is an apocalyptic number.

6977678 is a deficient number, since it is larger than the sum of its proper divisors (3488842).

6977678 is a wasteful number, since it uses less digits than its factorization.

6977678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3488841.

The product of its digits is 889056, while the sum is 50.

The square root of 6977678 is about 2641.5294811908. The cubic root of 6977678 is about 191.0895662821.

The spelling of 6977678 in words is "six million, nine hundred seventy-seven thousand, six hundred seventy-eight".