3977968 has 20 divisors (see below), whose sum is σ = 7854408. Its totient is φ = 1951040.

The previous prime is 3977947. The next prime is 3977977. The reversal of 3977968 is 8697793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498 + ... + 3193.

Almost surely, 2^3977968 is an apocalyptic number.

It is an amenable number.

3977968 is a deficient number, since it is larger than the sum of its proper divisors (3876440).

3977968 is a wasteful number, since it uses less digits than its factorization.

3977968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4752 (or 4746 counting only the distinct ones).

The product of its digits is 571536, while the sum is 49.

The square root of 3977968 is about 1994.4843945241. The cubic root of 3977968 is about 158.4481216239.

The spelling of 3977968 in words is "three million, nine hundred seventy-seven thousand, nine hundred sixty-eight".