825732239 has 2 divisors, whose sum is σ = 825732240. Its totient is φ = 825732238.

The previous prime is 825732233. The next prime is 825732247. The reversal of 825732239 is 932237528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 825732239 - 2⁸ = 825731983 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 825732196 and 825732205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825732233) 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, 412866119 + 412866120.

It is an arithmetic number, because the mean of its divisors is an integer number (412866120).

Almost surely, 2^825732239 is an apocalyptic number.

825732239 is a deficient number, since it is larger than the sum of its proper divisors (1).

825732239 is an equidigital number, since it uses as much as digits as its factorization.

825732239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 825732239 is about 28735.5570504558. The cubic root of 825732239 is about 938.1661238951.

The spelling of 825732239 in words is "eight hundred twenty-five million, seven hundred thirty-two thousand, two hundred thirty-nine".