3986597 has 2 divisors, whose sum is σ = 3986598. Its totient is φ = 3986596.

The previous prime is 3986581. The next prime is 3986611. The reversal of 3986597 is 7956893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3511876 + 474721 = 1874^2 + 689^2 .

It is a cyclic number.

It is not a de Polignac number, because 3986597 - 2⁴ = 3986581 is a prime.

It is a Chen prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3986537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993298 + 1993299.

It is an arithmetic number, because the mean of its divisors is an integer number (1993299).

Almost surely, 2^3986597 is an apocalyptic number.

It is an amenable number.

3986597 is a deficient number, since it is larger than the sum of its proper divisors (1).

3986597 is an equidigital number, since it uses as much as digits as its factorization.

3986597 is an evil number, because the sum of its binary digits is even.

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

The square root of 3986597 is about 1996.6464384062. The cubic root of 3986597 is about 158.5626073295.

The spelling of 3986597 in words is "three million, nine hundred eighty-six thousand, five hundred ninety-seven".