3198739 has 2 divisors, whose sum is σ = 3198740. Its totient is φ = 3198738.

The previous prime is 3198733. The next prime is 3198743. The reversal of 3198739 is 9378913.

3198739 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 is a cyclic number.

It is not a de Polignac number, because 3198739 - 2³ = 3198731 is a prime.

It is not a weakly prime, because it can be changed into another prime (3198731) 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, 1599369 + 1599370.

It is an arithmetic number, because the mean of its divisors is an integer number (1599370).

Almost surely, 2^3198739 is an apocalyptic number.

3198739 is a deficient number, since it is larger than the sum of its proper divisors (1).

3198739 is an equidigital number, since it uses as much as digits as its factorization.

3198739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 3198739 is about 1788.5018870552. The cubic root of 3198739 is about 147.3419008870.

The spelling of 3198739 in words is "three million, one hundred ninety-eight thousand, seven hundred thirty-nine".