825828239 has 2 divisors, whose sum is σ = 825828240. Its totient is φ = 825828238.

The previous prime is 825828229. The next prime is 825828281. The reversal of 825828239 is 932828528.

It is a happy number.

825828239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 825828239 - 2¹² = 825824143 is a prime.

It is a super-2 number, since 2×825828239² = 1363984560659682242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 825828193 and 825828202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825828229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412914119 + 412914120.

It is an arithmetic number, because the mean of its divisors is an integer number (412914120).

Almost surely, 2^825828239 is an apocalyptic number.

825828239 is a deficient number, since it is larger than the sum of its proper divisors (1).

825828239 is an equidigital number, since it uses as much as digits as its factorization.

825828239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 552960, while the sum is 47.

The square root of 825828239 is about 28737.2274062756. The cubic root of 825828239 is about 938.2024796908.

The spelling of 825828239 in words is "eight hundred twenty-five million, eight hundred twenty-eight thousand, two hundred thirty-nine".