3859439 has 2 divisors, whose sum is σ = 3859440. Its totient is φ = 3859438.

The previous prime is 3859411. The next prime is 3859447. The reversal of 3859439 is 9349583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3859439 - 2⁸ = 3859183 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3859396 and 3859405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3859039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1929719 + 1929720.

It is an arithmetic number, because the mean of its divisors is an integer number (1929720).

Almost surely, 2^3859439 is an apocalyptic number.

3859439 is a deficient number, since it is larger than the sum of its proper divisors (1).

3859439 is an equidigital number, since it uses as much as digits as its factorization.

3859439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 41.

The square root of 3859439 is about 1964.5454945101. The cubic root of 3859439 is about 156.8585009870.

The spelling of 3859439 in words is "three million, eight hundred fifty-nine thousand, four hundred thirty-nine".