223929239 has 2 divisors, whose sum is σ = 223929240. Its totient is φ = 223929238.

The previous prime is 223929229. The next prime is 223929263. The reversal of 223929239 is 932929322.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223929239 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 223929196 and 223929205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223929229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111964619 + 111964620.

It is an arithmetic number, because the mean of its divisors is an integer number (111964620).

Almost surely, 2^223929239 is an apocalyptic number.

223929239 is a deficient number, since it is larger than the sum of its proper divisors (1).

223929239 is an equidigital number, since it uses as much as digits as its factorization.

223929239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 41.

The square root of 223929239 is about 14964.2654012818. The cubic root of 223929239 is about 607.2538376186.

The spelling of 223929239 in words is "two hundred twenty-three million, nine hundred twenty-nine thousand, two hundred thirty-nine".