80966317 has 2 divisors, whose sum is σ = 80966318. Its totient is φ = 80966316.

The previous prime is 80966309. The next prime is 80966357. The reversal of 80966317 is 71366908.

It is an a-pointer prime, because the next prime (80966357) can be obtained adding 80966317 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77686596 + 3279721 = 8814^2 + 1811^2 .

It is a cyclic number.

It is not a de Polignac number, because 80966317 - 2³ = 80966309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80966317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80966357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40483158 + 40483159.

It is an arithmetic number, because the mean of its divisors is an integer number (40483159).

Almost surely, 2^80966317 is an apocalyptic number.

It is an amenable number.

80966317 is a deficient number, since it is larger than the sum of its proper divisors (1).

80966317 is an equidigital number, since it uses as much as digits as its factorization.

80966317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 80966317 is about 8998.1285276440. The cubic root of 80966317 is about 432.6148883421.

The spelling of 80966317 in words is "eighty million, nine hundred sixty-six thousand, three hundred seventeen".