4939439 has 2 divisors, whose sum is σ = 4939440. Its totient is φ = 4939438.

The previous prime is 4939433. The next prime is 4939471. The reversal of 4939439 is 9349394.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4939439 - 2⁴ = 4939423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4939396 and 4939405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4939433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2469719 + 2469720.

It is an arithmetic number, because the mean of its divisors is an integer number (2469720).

Almost surely, 2^4939439 is an apocalyptic number.

4939439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4939439 is an equidigital number, since it uses as much as digits as its factorization.

4939439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 41.

The square root of 4939439 is about 2222.4848705897. The cubic root of 4939439 is about 170.3044027068.

The spelling of 4939439 in words is "four million, nine hundred thirty-nine thousand, four hundred thirty-nine".