4999439 has 2 divisors, whose sum is σ = 4999440. Its totient is φ = 4999438.

The previous prime is 4999427. The next prime is 4999447. The reversal of 4999439 is 9349994.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4999439 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4999393 and 4999402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4999409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2499719 + 2499720.

It is an arithmetic number, because the mean of its divisors is an integer number (2499720).

Almost surely, 2^4999439 is an apocalyptic number.

4999439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4999439 is an equidigital number, since it uses as much as digits as its factorization.

4999439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 47.

The square root of 4999439 is about 2235.9425305674. The cubic root of 4999439 is about 170.9911991184.

The spelling of 4999439 in words is "four million, nine hundred ninety-nine thousand, four hundred thirty-nine".