825701039 has 2 divisors, whose sum is σ = 825701040. Its totient is φ = 825701038.

The previous prime is 825701017. The next prime is 825701053. The reversal of 825701039 is 930107528.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-825701039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825701059) 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, 412850519 + 412850520.

It is an arithmetic number, because the mean of its divisors is an integer number (412850520).

Almost surely, 2^825701039 is an apocalyptic number.

825701039 is a deficient number, since it is larger than the sum of its proper divisors (1).

825701039 is an equidigital number, since it uses as much as digits as its factorization.

825701039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 825701039 is about 28735.0141639081. The cubic root of 825701039 is about 938.1543076548.

The spelling of 825701039 in words is "eight hundred twenty-five million, seven hundred one thousand, thirty-nine".