80471173 has 2 divisors, whose sum is σ = 80471174. Its totient is φ = 80471172.

The previous prime is 80471161. The next prime is 80471177. The reversal of 80471173 is 37117408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75377124 + 5094049 = 8682^2 + 2257^2 .

It is a cyclic number.

It is not a de Polignac number, because 80471173 - 2⁹ = 80470661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80471177) 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, 40235586 + 40235587.

It is an arithmetic number, because the mean of its divisors is an integer number (40235587).

Almost surely, 2^80471173 is an apocalyptic number.

It is an amenable number.

80471173 is a deficient number, since it is larger than the sum of its proper divisors (1).

80471173 is an equidigital number, since it uses as much as digits as its factorization.

80471173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 80471173 is about 8970.5726127154. The cubic root of 80471173 is about 431.7312088927.

The spelling of 80471173 in words is "eighty million, four hundred seventy-one thousand, one hundred seventy-three".