825027439 has 2 divisors, whose sum is σ = 825027440. Its totient is φ = 825027438.

The previous prime is 825027407. The next prime is 825027473. The reversal of 825027439 is 934720528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 825027439 - 2⁵ = 825027407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825027499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412513719 + 412513720.

It is an arithmetic number, because the mean of its divisors is an integer number (412513720).

Almost surely, 2^825027439 is an apocalyptic number.

825027439 is a deficient number, since it is larger than the sum of its proper divisors (1).

825027439 is an equidigital number, since it uses as much as digits as its factorization.

825027439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 825027439 is about 28723.2908803988. The cubic root of 825027439 is about 937.8991254384.

The spelling of 825027439 in words is "eight hundred twenty-five million, twenty-seven thousand, four hundred thirty-nine".