830861 has 2 divisors, whose sum is σ = 830862. Its totient is φ = 830860.

The previous prime is 830849. The next prime is 830873. The reversal of 830861 is 168038.

It is a balanced prime because it is at equal distance from previous prime (830849) and next prime (830873).

It can be written as a sum of positive squares in only one way, i.e., 609961 + 220900 = 781^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 830861 - 2¹⁴ = 814477 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 830861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (830801) 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, 415430 + 415431.

It is an arithmetic number, because the mean of its divisors is an integer number (415431).

2⁸³⁰⁸⁶¹ is an apocalyptic number.

It is an amenable number.

830861 is a deficient number, since it is larger than the sum of its proper divisors (1).

830861 is an equidigital number, since it uses as much as digits as its factorization.

830861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 830861 is about 911.5157705712. The cubic root of 830861 is about 94.0104485141.

Adding to 830861 its reverse (168038), we get a palindrome (998899).

The spelling of 830861 in words is "eight hundred thirty thousand, eight hundred sixty-one".