6977904 has 40 divisors (see below), whose sum is σ = 18518160. Its totient is φ = 2262528.

The previous prime is 6977903. The next prime is 6977923. The reversal of 6977904 is 4097796.

It is a super-2 number, since 2×6977904² = 97382288466432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6977903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189 + ... + 3740.

It is an arithmetic number, because the mean of its divisors is an integer number (462954).

Almost surely, 2^6977904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6977904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9259080).

6977904 is an abundant number, since it is smaller than the sum of its proper divisors (11540256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6977904 is a wasteful number, since it uses less digits than its factorization.

6977904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977 (or 3971 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 6977904 is about 2641.5722590912. The cubic root of 6977904 is about 191.0916293263.

The spelling of 6977904 in words is "six million, nine hundred seventy-seven thousand, nine hundred four".