855079 has 2 divisors, whose sum is σ = 855080. Its totient is φ = 855078.

The previous prime is 855067. The next prime is 855089. The reversal of 855079 is 970558.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 855079 - 2⁷ = 854951 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427539 + 427540.

It is an arithmetic number, because the mean of its divisors is an integer number (427540).

2⁸⁵⁵⁰⁷⁹ is an apocalyptic number.

855079 is a deficient number, since it is larger than the sum of its proper divisors (1).

855079 is an equidigital number, since it uses as much as digits as its factorization.

855079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 855079 is about 924.7048177662. The cubic root of 855079 is about 94.9151227120.

The spelling of 855079 in words is "eight hundred fifty-five thousand, seventy-nine".