3989413 has 2 divisors, whose sum is σ = 3989414. Its totient is φ = 3989412.

The previous prime is 3989393. The next prime is 3989429. The reversal of 3989413 is 3149893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2505889 + 1483524 = 1583^2 + 1218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3989413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3986413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994706 + 1994707.

It is an arithmetic number, because the mean of its divisors is an integer number (1994707).

Almost surely, 2^3989413 is an apocalyptic number.

It is an amenable number.

3989413 is a deficient number, since it is larger than the sum of its proper divisors (1).

3989413 is an equidigital number, since it uses as much as digits as its factorization.

3989413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 3989413 is about 1997.3514963571. The cubic root of 3989413 is about 158.5999329993.

The spelling of 3989413 in words is "three million, nine hundred eighty-nine thousand, four hundred thirteen".