3977930 has 48 divisors (see below), whose sum is σ = 8277984. Its totient is φ = 1364160.

The previous prime is 3977929. The next prime is 3977933. The reversal of 3977930 is 397793.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3977933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92489 + ... + 92531.

It is an arithmetic number, because the mean of its divisors is an integer number (172458).

Almost surely, 2^3977930 is an apocalyptic number.

3977930 is an abundant number, since it is smaller than the sum of its proper divisors (4300054).

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

3977930 is a wasteful number, since it uses less digits than its factorization.

3977930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 35721, while the sum is 38.

The square root of 3977930 is about 1994.4748682297. The cubic root of 3977930 is about 158.4476170909.

The spelling of 3977930 in words is "three million, nine hundred seventy-seven thousand, nine hundred thirty".