80203217 has 2 divisors, whose sum is σ = 80203218. Its totient is φ = 80203216.

The previous prime is 80203187. The next prime is 80203267. The reversal of 80203217 is 71230208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43612816 + 36590401 = 6604^2 + 6049^2 .

It is a cyclic number.

It is not a de Polignac number, because 80203217 - 2¹⁰ = 80202193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80203192 and 80203201.

It is not a weakly prime, because it can be changed into another prime (80203267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40101608 + 40101609.

It is an arithmetic number, because the mean of its divisors is an integer number (40101609).

Almost surely, 2^80203217 is an apocalyptic number.

It is an amenable number.

80203217 is a deficient number, since it is larger than the sum of its proper divisors (1).

80203217 is an equidigital number, since it uses as much as digits as its factorization.

80203217 is an odious number, because the sum of its binary digits is odd.

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

The square root of 80203217 is about 8955.6248804871. The cubic root of 80203217 is about 431.2514776397.

The spelling of 80203217 in words is "eighty million, two hundred three thousand, two hundred seventeen".