859049 has 2 divisors, whose sum is σ = 859050. Its totient is φ = 859048.

The previous prime is 859037. The next prime is 859051. The reversal of 859049 is 940958.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 753424 + 105625 = 868^2 + 325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-859049 is a prime.

Together with 859051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (859249) 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, 429524 + 429525.

It is an arithmetic number, because the mean of its divisors is an integer number (429525).

2⁸⁵⁹⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

859049 is a deficient number, since it is larger than the sum of its proper divisors (1).

859049 is an equidigital number, since it uses as much as digits as its factorization.

859049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 859049 is about 926.8489628845. The cubic root of 859049 is about 95.0617880591.

The spelling of 859049 in words is "eight hundred fifty-nine thousand, forty-nine".