4899439 has 2 divisors, whose sum is σ = 4899440. Its totient is φ = 4899438.

The previous prime is 4899431. The next prime is 4899443. The reversal of 4899439 is 9349984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4899439 - 2³ = 4899431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4899431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2449719 + 2449720.

It is an arithmetic number, because the mean of its divisors is an integer number (2449720).

Almost surely, 2^4899439 is an apocalyptic number.

4899439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4899439 is an equidigital number, since it uses as much as digits as its factorization.

4899439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 46.

The square root of 4899439 is about 2213.4676415073. The cubic root of 4899439 is about 169.8434429490.

The spelling of 4899439 in words is "four million, eight hundred ninety-nine thousand, four hundred thirty-nine".