506658239 has 2 divisors, whose sum is σ = 506658240. Its totient is φ = 506658238.

The previous prime is 506658233. The next prime is 506658263. The reversal of 506658239 is 932856605.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 506658239 - 2⁴ = 506658223 is a prime.

It is a super-2 number, since 2×506658239² = 513405142293162242, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 506658239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506658233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253329119 + 253329120.

It is an arithmetic number, because the mean of its divisors is an integer number (253329120).

Almost surely, 2^506658239 is an apocalyptic number.

506658239 is a deficient number, since it is larger than the sum of its proper divisors (1).

506658239 is an equidigital number, since it uses as much as digits as its factorization.

506658239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 506658239 is about 22509.0701496086. The cubic root of 506658239 is about 797.2081007702.

The spelling of 506658239 in words is "five hundred six million, six hundred fifty-eight thousand, two hundred thirty-nine".