80321177 has 2 divisors, whose sum is σ = 80321178. Its totient is φ = 80321176.

The previous prime is 80321123. The next prime is 80321179. The reversal of 80321177 is 77112308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79995136 + 326041 = 8944^2 + 571^2 .

It is a cyclic number.

It is not a de Polignac number, because 80321177 - 2⁸ = 80320921 is a prime.

Together with 80321179, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80321179) 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, 40160588 + 40160589.

It is an arithmetic number, because the mean of its divisors is an integer number (40160589).

Almost surely, 2^80321177 is an apocalyptic number.

It is an amenable number.

80321177 is a deficient number, since it is larger than the sum of its proper divisors (1).

80321177 is an equidigital number, since it uses as much as digits as its factorization.

80321177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 80321177 is about 8962.2082658238. The cubic root of 80321177 is about 431.4627971150.

The spelling of 80321177 in words is "eighty million, three hundred twenty-one thousand, one hundred seventy-seven".