80220317 has 2 divisors, whose sum is σ = 80220318. Its totient is φ = 80220316.

The previous prime is 80220227. The next prime is 80220347. The reversal of 80220317 is 71302208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43811161 + 36409156 = 6619^2 + 6034^2 .

It is a cyclic number.

It is not a de Polignac number, because 80220317 - 2¹⁸ = 79958173 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 80220292 and 80220301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80220347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40110158 + 40110159.

It is an arithmetic number, because the mean of its divisors is an integer number (40110159).

Almost surely, 2^80220317 is an apocalyptic number.

It is an amenable number.

80220317 is a deficient number, since it is larger than the sum of its proper divisors (1).

80220317 is an equidigital number, since it uses as much as digits as its factorization.

80220317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 80220317 is about 8956.5795368545. The cubic root of 80220317 is about 431.2821242750.

The spelling of 80220317 in words is "eighty million, two hundred twenty thousand, three hundred seventeen".