492558239 has 2 divisors, whose sum is σ = 492558240. Its totient is φ = 492558238.

The previous prime is 492558217. The next prime is 492558263. The reversal of 492558239 is 932855294.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 492558239 - 2²⁸ = 224122783 is a prime.

It is a super-2 number, since 2×492558239² = 485227237613562242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 492558193 and 492558202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492558139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246279119 + 246279120.

It is an arithmetic number, because the mean of its divisors is an integer number (246279120).

Almost surely, 2^492558239 is an apocalyptic number.

492558239 is a deficient number, since it is larger than the sum of its proper divisors (1).

492558239 is an equidigital number, since it uses as much as digits as its factorization.

492558239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 47.

The square root of 492558239 is about 22193.6531242605. The cubic root of 492558239 is about 789.7431408708.

The spelling of 492558239 in words is "four hundred ninety-two million, five hundred fifty-eight thousand, two hundred thirty-nine".