3139399 has 2 divisors, whose sum is σ = 3139400. Its totient is φ = 3139398.

The previous prime is 3139393. The next prime is 3139403. The reversal of 3139399 is 9939313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3139399 - 2³ = 3139391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3139391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569699 + 1569700.

It is an arithmetic number, because the mean of its divisors is an integer number (1569700).

Almost surely, 2^3139399 is an apocalyptic number.

3139399 is a deficient number, since it is larger than the sum of its proper divisors (1).

3139399 is an equidigital number, since it uses as much as digits as its factorization.

3139399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19683, while the sum is 37.

The square root of 3139399 is about 1771.8349245909. The cubic root of 3139399 is about 146.4250918751.

The spelling of 3139399 in words is "three million, one hundred thirty-nine thousand, three hundred ninety-nine".