20592839 has 2 divisors, whose sum is σ = 20592840. Its totient is φ = 20592838.

The previous prime is 20592833. The next prime is 20592841. The reversal of 20592839 is 93829502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20592839 - 2⁴ = 20592823 is a prime.

Together with 20592841, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20592833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10296419 + 10296420.

It is an arithmetic number, because the mean of its divisors is an integer number (10296420).

Almost surely, 2^20592839 is an apocalyptic number.

20592839 is a deficient number, since it is larger than the sum of its proper divisors (1).

20592839 is an equidigital number, since it uses as much as digits as its factorization.

20592839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 20592839 is about 4537.9333401891. The cubic root of 20592839 is about 274.0977105473.

The spelling of 20592839 in words is "twenty million, five hundred ninety-two thousand, eight hundred thirty-nine".