3942976 has 14 divisors (see below), whose sum is σ = 7824470. Its totient is φ = 1971456.

The previous prime is 3942947. The next prime is 3942977. The reversal of 3942976 is 6792493.

It can be written as a sum of positive squares in only one way, i.e., 2560000 + 1382976 = 1600^2 + 1176^2 .

It is not an unprimeable number, because it can be changed into a prime (3942977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30741 + ... + 30868.

Almost surely, 2^3942976 is an apocalyptic number.

It is an amenable number.

3942976 is a deficient number, since it is larger than the sum of its proper divisors (3881494).

3942976 is an equidigital number, since it uses as much as digits as its factorization.

3942976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61621 (or 61611 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 3942976 is about 1985.6928261944. The cubic root of 3942976 is about 157.9821589640.

The spelling of 3942976 in words is "three million, nine hundred forty-two thousand, nine hundred seventy-six".