811688083 has 2 divisors, whose sum is σ = 811688084. Its totient is φ = 811688082.

The previous prime is 811688063. The next prime is 811688179. The reversal of 811688083 is 380886118.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 811688083 - 2⁵ = 811688051 is a prime.

It is not a weakly prime, because it can be changed into another prime (811688063) 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, 405844041 + 405844042.

It is an arithmetic number, because the mean of its divisors is an integer number (405844042).

Almost surely, 2^811688083 is an apocalyptic number.

811688083 is a deficient number, since it is larger than the sum of its proper divisors (1).

811688083 is an equidigital number, since it uses as much as digits as its factorization.

811688083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73728, while the sum is 43.

The square root of 811688083 is about 28490.1401014456. The cubic root of 811688083 is about 932.8168662033.

The spelling of 811688083 in words is "eight hundred eleven million, six hundred eighty-eight thousand, eighty-three".