812197327 has 2 divisors, whose sum is σ = 812197328. Its totient is φ = 812197326.

The previous prime is 812197307. The next prime is 812197339. The reversal of 812197327 is 723791218.

It is a happy number.

812197327 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812197327 - 2¹⁹ = 811673039 is a prime.

It is a super-3 number, since 3×812197327³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 812197327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812197307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406098663 + 406098664.

It is an arithmetic number, because the mean of its divisors is an integer number (406098664).

Almost surely, 2^812197327 is an apocalyptic number.

812197327 is a deficient number, since it is larger than the sum of its proper divisors (1).

812197327 is an equidigital number, since it uses as much as digits as its factorization.

812197327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 40.

The square root of 812197327 is about 28499.0758972988. The cubic root of 812197327 is about 933.0119050340.

The spelling of 812197327 in words is "eight hundred twelve million, one hundred ninety-seven thousand, three hundred twenty-seven".