812664283 has 2 divisors, whose sum is σ = 812664284. Its totient is φ = 812664282.

The previous prime is 812664271. The next prime is 812664301. The reversal of 812664283 is 382466218.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 812664283 - 2⁹ = 812663771 is a prime.

It is not a weakly prime, because it can be changed into another prime (812664383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406332141 + 406332142.

It is an arithmetic number, because the mean of its divisors is an integer number (406332142).

Almost surely, 2^812664283 is an apocalyptic number.

812664283 is a deficient number, since it is larger than the sum of its proper divisors (1).

812664283 is an equidigital number, since it uses as much as digits as its factorization.

812664283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 40.

The square root of 812664283 is about 28507.2671962782. The cubic root of 812664283 is about 933.1906760563.

The spelling of 812664283 in words is "eight hundred twelve million, six hundred sixty-four thousand, two hundred eighty-three".