801859 has 2 divisors, whose sum is σ = 801860. Its totient is φ = 801858.

The previous prime is 801841. The next prime is 801883. The reversal of 801859 is 958108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 801859 - 2¹⁵ = 769091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 801859.

It is not a weakly prime, because it can be changed into another prime (801809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400929 + 400930.

It is an arithmetic number, because the mean of its divisors is an integer number (400930).

2⁸⁰¹⁸⁵⁹ is an apocalyptic number.

801859 is a deficient number, since it is larger than the sum of its proper divisors (1).

801859 is an equidigital number, since it uses as much as digits as its factorization.

801859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 801859 is about 895.4658005753. The cubic root of 801859 is about 92.9036269939.

The spelling of 801859 in words is "eight hundred one thousand, eight hundred fifty-nine".