3936917 has 2 divisors, whose sum is σ = 3936918. Its totient is φ = 3936916.

The previous prime is 3936913. The next prime is 3936923. The reversal of 3936917 is 7196393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2283121 + 1653796 = 1511^2 + 1286^2 .

It is a cyclic number.

It is not a de Polignac number, because 3936917 - 2² = 3936913 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 (3936913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1968458 + 1968459.

It is an arithmetic number, because the mean of its divisors is an integer number (1968459).

Almost surely, 2^3936917 is an apocalyptic number.

It is an amenable number.

3936917 is a deficient number, since it is larger than the sum of its proper divisors (1).

3936917 is an equidigital number, since it uses as much as digits as its factorization.

3936917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618, while the sum is 38.

The square root of 3936917 is about 1984.1665756685. The cubic root of 3936917 is about 157.9011960379.

The spelling of 3936917 in words is "three million, nine hundred thirty-six thousand, nine hundred seventeen".