80543471 has 2 divisors, whose sum is σ = 80543472. Its totient is φ = 80543470.

The previous prime is 80543453. The next prime is 80543473. The reversal of 80543471 is 17434508.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80543471 is a prime.

It is a super-3 number, since 3×80543471³ (a number of 25 digits) contains 333 as substring.

Together with 80543473, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80543473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40271735 + 40271736.

It is an arithmetic number, because the mean of its divisors is an integer number (40271736).

Almost surely, 2^80543471 is an apocalyptic number.

80543471 is a deficient number, since it is larger than the sum of its proper divisors (1).

80543471 is an equidigital number, since it uses as much as digits as its factorization.

80543471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 80543471 is about 8974.6014396184. The cubic root of 80543471 is about 431.8604641226.

Adding to 80543471 its reverse (17434508), we get a palindrome (97977979).

The spelling of 80543471 in words is "eighty million, five hundred forty-three thousand, four hundred seventy-one".