10239839 has 2 divisors, whose sum is σ = 10239840. Its totient is φ = 10239838.

The previous prime is 10239829. The next prime is 10239847. The reversal of 10239839 is 93893201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10239839 - 2²⁰ = 9191263 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 10239799 and 10239808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10239829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5119919 + 5119920.

It is an arithmetic number, because the mean of its divisors is an integer number (5119920).

Almost surely, 2^10239839 is an apocalyptic number.

10239839 is a deficient number, since it is larger than the sum of its proper divisors (1).

10239839 is an equidigital number, since it uses as much as digits as its factorization.

10239839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 10239839 is about 3199.9748436511. The cubic root of 10239839 is about 217.1522712455.

The spelling of 10239839 in words is "ten million, two hundred thirty-nine thousand, eight hundred thirty-nine".