3970992 has 20 divisors (see below), whose sum is σ = 10258520. Its totient is φ = 1323648.

The previous prime is 3970991. The next prime is 3970997. The reversal of 3970992 is 2990793.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3970992.

It is not an unprimeable number, because it can be changed into a prime (3970991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41317 + ... + 41412.

It is an arithmetic number, because the mean of its divisors is an integer number (512926).

Almost surely, 2^3970992 is an apocalyptic number.

It is an amenable number.

3970992 is an abundant number, since it is smaller than the sum of its proper divisors (6287528).

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

3970992 is a wasteful number, since it uses less digits than its factorization.

3970992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82740 (or 82734 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 3970992 is about 1992.7348042326. The cubic root of 3970992 is about 158.3554460960.

The spelling of 3970992 in words is "three million, nine hundred seventy thousand, nine hundred ninety-two".