855085239 has 6 divisors (see below), whose sum is σ = 1235123136. Its totient is φ = 570056820.

The previous prime is 855085201. The next prime is 855085243. The reversal of 855085239 is 932580558.

It is not a de Polignac number, because 855085239 - 2⁸ = 855084983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 855085194 and 855085203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855085279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47504727 + ... + 47504744.

It is an arithmetic number, because the mean of its divisors is an integer number (205853856).

Almost surely, 2^855085239 is an apocalyptic number.

855085239 is a deficient number, since it is larger than the sum of its proper divisors (380037897).

855085239 is a wasteful number, since it uses less digits than its factorization.

855085239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95009477 (or 95009474 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The square root of 855085239 is about 29241.8405542469. The cubic root of 855085239 is about 949.1535355774.

The spelling of 855085239 in words is "eight hundred fifty-five million, eighty-five thousand, two hundred thirty-nine".