3943937 has 2 divisors, whose sum is σ = 3943938. Its totient is φ = 3943936.

The previous prime is 3943931. The next prime is 3943939. The reversal of 3943937 is 7393493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2383936 + 1560001 = 1544^2 + 1249^2 .

It is a cyclic number.

It is not a de Polignac number, because 3943937 - 2⁴ = 3943921 is a prime.

Together with 3943939, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3943937.

It is not a weakly prime, because it can be changed into another prime (3943931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1971968 + 1971969.

It is an arithmetic number, because the mean of its divisors is an integer number (1971969).

Almost surely, 2^3943937 is an apocalyptic number.

It is an amenable number.

3943937 is a deficient number, since it is larger than the sum of its proper divisors (1).

3943937 is an equidigital number, since it uses as much as digits as its factorization.

3943937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 38.

The square root of 3943937 is about 1985.9347924844. The cubic root of 3943937 is about 157.9949926309.

The spelling of 3943937 in words is "three million, nine hundred forty-three thousand, nine hundred thirty-seven".