834857 has 2 divisors, whose sum is σ = 834858. Its totient is φ = 834856.

The previous prime is 834829. The next prime is 834859. The reversal of 834857 is 758438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 802816 + 32041 = 896^2 + 179^2 .

It is a cyclic number.

It is not a de Polignac number, because 834857 - 2¹⁴ = 818473 is a prime.

Together with 834859, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (834859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417428 + 417429.

It is an arithmetic number, because the mean of its divisors is an integer number (417429).

2⁸³⁴⁸⁵⁷ is an apocalyptic number.

It is an amenable number.

834857 is a deficient number, since it is larger than the sum of its proper divisors (1).

834857 is an equidigital number, since it uses as much as digits as its factorization.

834857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 35.

The square root of 834857 is about 913.7050946558. The cubic root of 834857 is about 94.1609209780.

The spelling of 834857 in words is "eight hundred thirty-four thousand, eight hundred fifty-seven".