812916017 has 2 divisors, whose sum is σ = 812916018. Its totient is φ = 812916016.

The previous prime is 812915993. The next prime is 812916029. The reversal of 812916017 is 710619218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 651219361 + 161696656 = 25519^2 + 12716^2 .

It is a cyclic number.

It is not a de Polignac number, because 812916017 - 2⁶ = 812915953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (812916037) 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, 406458008 + 406458009.

It is an arithmetic number, because the mean of its divisors is an integer number (406458009).

Almost surely, 2^812916017 is an apocalyptic number.

It is an amenable number.

812916017 is a deficient number, since it is larger than the sum of its proper divisors (1).

812916017 is an equidigital number, since it uses as much as digits as its factorization.

812916017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 812916017 is about 28511.6821145298. The cubic root of 812916017 is about 933.2870223478.

The spelling of 812916017 in words is "eight hundred twelve million, nine hundred sixteen thousand, seventeen".