224739839 has 2 divisors, whose sum is σ = 224739840. Its totient is φ = 224739838.

The previous prime is 224739811. The next prime is 224739841. The reversal of 224739839 is 938937422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 224739839 - 2²⁰ = 223691263 is a prime.

Together with 224739841, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 224739793 and 224739802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224739139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112369919 + 112369920.

It is an arithmetic number, because the mean of its divisors is an integer number (112369920).

Almost surely, 2^224739839 is an apocalyptic number.

224739839 is a deficient number, since it is larger than the sum of its proper divisors (1).

224739839 is an equidigital number, since it uses as much as digits as its factorization.

224739839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The square root of 224739839 is about 14991.3254584109. The cubic root of 224739839 is about 607.9856866653.

The spelling of 224739839 in words is "two hundred twenty-four million, seven hundred thirty-nine thousand, eight hundred thirty-nine".