3968957 has 2 divisors, whose sum is σ = 3968958. Its totient is φ = 3968956.

The previous prime is 3968947. The next prime is 3968981. The reversal of 3968957 is 7598693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2149156 + 1819801 = 1466^2 + 1349^2 .

It is an emirp because it is prime and its reverse (7598693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3968957 - 2⁴ = 3968941 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3968917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1984478 + 1984479.

It is an arithmetic number, because the mean of its divisors is an integer number (1984479).

Almost surely, 2^3968957 is an apocalyptic number.

It is an amenable number.

3968957 is a deficient number, since it is larger than the sum of its proper divisors (1).

3968957 is an equidigital number, since it uses as much as digits as its factorization.

3968957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 47.

The square root of 3968957 is about 1992.2241339769. The cubic root of 3968957 is about 158.3283908583.

The spelling of 3968957 in words is "three million, nine hundred sixty-eight thousand, nine hundred fifty-seven".