830591 has 2 divisors, whose sum is σ = 830592. Its totient is φ = 830590.

The previous prime is 830587. The next prime is 830597. The reversal of 830591 is 195038.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 830591 - 2² = 830587 is a prime.

It is a Chen prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 830591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (830597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415295 + 415296.

It is an arithmetic number, because the mean of its divisors is an integer number (415296).

2⁸³⁰⁵⁹¹ is an apocalyptic number.

830591 is a deficient number, since it is larger than the sum of its proper divisors (1).

830591 is an equidigital number, since it uses as much as digits as its factorization.

830591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 830591 is about 911.3676535844. The cubic root of 830591 is about 94.0002640705. Note that the first 3 decimals are identical.

The spelling of 830591 in words is "eight hundred thirty thousand, five hundred ninety-one".