830859 has 4 divisors (see below), whose sum is σ = 1107816. Its totient is φ = 553904.

The previous prime is 830849. The next prime is 830861. The reversal of 830859 is 958038.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 830859 - 2⁵ = 830827 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (830839) 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 in 3 ways as a sum of consecutive naturals, for example, 138474 + ... + 138479.

It is an arithmetic number, because the mean of its divisors is an integer number (276954).

2⁸³⁰⁸⁵⁹ is an apocalyptic number.

830859 is a deficient number, since it is larger than the sum of its proper divisors (276957).

830859 is a wasteful number, since it uses less digits than its factorization.

830859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276956.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 830859 is about 911.5146734968. The cubic root of 830859 is about 94.0103730819.

The spelling of 830859 in words is "eight hundred thirty thousand, eight hundred fifty-nine".