852259439 has 2 divisors, whose sum is σ = 852259440. Its totient is φ = 852259438.

The previous prime is 852259423. The next prime is 852259477. The reversal of 852259439 is 934952258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 852259439 - 2⁴ = 852259423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 852259393 and 852259402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (852259039) 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, 426129719 + 426129720.

It is an arithmetic number, because the mean of its divisors is an integer number (426129720).

Almost surely, 2^852259439 is an apocalyptic number.

852259439 is a deficient number, since it is larger than the sum of its proper divisors (1).

852259439 is an equidigital number, since it uses as much as digits as its factorization.

852259439 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 852259439 is about 29193.4828172317. The cubic root of 852259439 is about 948.1068258825.

The spelling of 852259439 in words is "eight hundred fifty-two million, two hundred fifty-nine thousand, four hundred thirty-nine".