5205839 has 2 divisors, whose sum is σ = 5205840. Its totient is φ = 5205838.

The previous prime is 5205817. The next prime is 5205853. The reversal of 5205839 is 9385025.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5205839 - 2⁸ = 5205583 is a prime.

It is a Sophie Germain 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 (5205139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2602919 + 2602920.

It is an arithmetic number, because the mean of its divisors is an integer number (2602920).

Almost surely, 2^5205839 is an apocalyptic number.

5205839 is a deficient number, since it is larger than the sum of its proper divisors (1).

5205839 is an equidigital number, since it uses as much as digits as its factorization.

5205839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 5205839 is about 2281.6307764404. The cubic root of 5205839 is about 173.3126425828.

The spelling of 5205839 in words is "five million, two hundred five thousand, eight hundred thirty-nine".