3977616 has 40 divisors (see below), whose sum is σ = 10356480. Its totient is φ = 1315456.

The previous prime is 3977599. The next prime is 3977621. The reversal of 3977616 is 6167793.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8065 + ... + 8543.

It is an arithmetic number, because the mean of its divisors is an integer number (258912).

Almost surely, 2^3977616 is an apocalyptic number.

It is an amenable number.

3977616 is an abundant number, since it is smaller than the sum of its proper divisors (6378864).

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

3977616 is a wasteful number, since it uses less digits than its factorization.

3977616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 657 counting only the distinct ones).

The product of its digits is 47628, while the sum is 39.

The square root of 3977616 is about 1994.3961492141. The cubic root of 3977616 is about 158.4434479325.

The spelling of 3977616 in words is "three million, nine hundred seventy-seven thousand, six hundred sixteen".