830691 has 12 divisors (see below), whose sum is σ = 1252368. Its totient is φ = 529584.

The previous prime is 830677. The next prime is 830693. The reversal of 830691 is 196038.

It is not a de Polignac number, because 830691 - 2¹¹ = 828643 is a prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 830691.

It is not an unprimeable number, because it can be changed into a prime (830693) 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 11 ways as a sum of consecutive naturals, for example, 1800 + ... + 2213.

It is an arithmetic number, because the mean of its divisors is an integer number (104364).

2⁸³⁰⁶⁹¹ is an apocalyptic number.

830691 is a deficient number, since it is larger than the sum of its proper divisors (421677).

830691 is a wasteful number, since it uses less digits than its factorization.

830691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042 (or 4039 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 830691 is about 911.4225145343. The cubic root of 830691 is about 94.0040363440.

It can be divided in two parts, 830 and 691, that added together give a square (1521 = 39²).

The spelling of 830691 in words is "eight hundred thirty thousand, six hundred ninety-one".