3966957 has 6 divisors (see below), whose sum is σ = 5730062. Its totient is φ = 2644632.

The previous prime is 3966929. The next prime is 3966961. The reversal of 3966957 is 7596693.

It can be written as a sum of positive squares in only one way, i.e., 2653641 + 1313316 = 1629^2 + 1146^2 .

It is not a de Polignac number, because 3966957 - 2⁸ = 3966701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 220378 + ... + 220395.

Almost surely, 2^3966957 is an apocalyptic number.

It is an amenable number.

3966957 is a deficient number, since it is larger than the sum of its proper divisors (1763105).

3966957 is a wasteful number, since it uses less digits than its factorization.

3966957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440779 (or 440776 counting only the distinct ones).

The product of its digits is 306180, while the sum is 45.

The square root of 3966957 is about 1991.7221191723. The cubic root of 3966957 is about 158.3017919319.

The spelling of 3966957 in words is "three million, nine hundred sixty-six thousand, nine hundred fifty-seven".