812808683 has 2 divisors, whose sum is σ = 812808684. Its totient is φ = 812808682.

The previous prime is 812808653. The next prime is 812808697. The reversal of 812808683 is 386808218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812808683 - 2⁸ = 812808427 is a prime.

It is not a weakly prime, because it can be changed into another prime (812808613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406404341 + 406404342.

It is an arithmetic number, because the mean of its divisors is an integer number (406404342).

Almost surely, 2^812808683 is an apocalyptic number.

812808683 is a deficient number, since it is larger than the sum of its proper divisors (1).

812808683 is an equidigital number, since it uses as much as digits as its factorization.

812808683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 812808683 is about 28509.7997713067. The cubic root of 812808683 is about 933.2459447800.

The spelling of 812808683 in words is "eight hundred twelve million, eight hundred eight thousand, six hundred eighty-three".