3139789 has 2 divisors, whose sum is σ = 3139790. Its totient is φ = 3139788.

The previous prime is 3139771. The next prime is 3139811. The reversal of 3139789 is 9879313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3132900 + 6889 = 1770^2 + 83^2 .

It is a cyclic number.

It is not a de Polignac number, because 3139789 - 2⁵ = 3139757 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3139189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569894 + 1569895.

It is an arithmetic number, because the mean of its divisors is an integer number (1569895).

Almost surely, 2^3139789 is an apocalyptic number.

It is an amenable number.

3139789 is a deficient number, since it is larger than the sum of its proper divisors (1).

3139789 is an equidigital number, since it uses as much as digits as its factorization.

3139789 is an evil number, because the sum of its binary digits is even.

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

The square root of 3139789 is about 1771.9449765724. The cubic root of 3139789 is about 146.4311549699.

The spelling of 3139789 in words is "three million, one hundred thirty-nine thousand, seven hundred eighty-nine".