830868691 has 2 divisors, whose sum is σ = 830868692. Its totient is φ = 830868690.

The previous prime is 830868673. The next prime is 830868719. The reversal of 830868691 is 196868038.

830868691 is nontrivially palindromic in base 7.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 830868691 - 2⁹ = 830868179 is a prime.

It is not a weakly prime, because it can be changed into another prime (830868631) 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, 415434345 + 415434346.

It is an arithmetic number, because the mean of its divisors is an integer number (415434346).

Almost surely, 2^830868691 is an apocalyptic number.

830868691 is a deficient number, since it is larger than the sum of its proper divisors (1).

830868691 is an equidigital number, since it uses as much as digits as its factorization.

830868691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 830868691 is about 28824.7929914510. The cubic root of 830868691 is about 940.1073858757.

The spelling of 830868691 in words is "eight hundred thirty million, eight hundred sixty-eight thousand, six hundred ninety-one".