80220871 has 2 divisors, whose sum is σ = 80220872. Its totient is φ = 80220870.

The previous prime is 80220859. The next prime is 80220893. The reversal of 80220871 is 17802208.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80220871 - 2⁷ = 80220743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80220821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40110435 + 40110436.

It is an arithmetic number, because the mean of its divisors is an integer number (40110436).

Almost surely, 2^80220871 is an apocalyptic number.

80220871 is a deficient number, since it is larger than the sum of its proper divisors (1).

80220871 is an equidigital number, since it uses as much as digits as its factorization.

80220871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 80220871 is about 8956.6104637860. The cubic root of 80220871 is about 431.2831170815.

The spelling of 80220871 in words is "eighty million, two hundred twenty thousand, eight hundred seventy-one".