3974917 has 2 divisors, whose sum is σ = 3974918. Its totient is φ = 3974916.

The previous prime is 3974911. The next prime is 3974921. The reversal of 3974917 is 7194793.

3974917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2414916 + 1560001 = 1554^2 + 1249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3974917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3974917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3974911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987458 + 1987459.

It is an arithmetic number, because the mean of its divisors is an integer number (1987459).

Almost surely, 2^3974917 is an apocalyptic number.

It is an amenable number.

3974917 is a deficient number, since it is larger than the sum of its proper divisors (1).

3974917 is an equidigital number, since it uses as much as digits as its factorization.

3974917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 40.

The square root of 3974917 is about 1993.7193884797. The cubic root of 3974917 is about 158.4076027071.

The spelling of 3974917 in words is "three million, nine hundred seventy-four thousand, nine hundred seventeen".