80001871 has 2 divisors, whose sum is σ = 80001872. Its totient is φ = 80001870.

The previous prime is 80001863. The next prime is 80001893. The reversal of 80001871 is 17810008.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80001871 - 2³ = 80001863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80001811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40000935 + 40000936.

It is an arithmetic number, because the mean of its divisors is an integer number (40000936).

Almost surely, 2^80001871 is an apocalyptic number.

80001871 is a deficient number, since it is larger than the sum of its proper divisors (1).

80001871 is an equidigital number, since it uses as much as digits as its factorization.

80001871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 80001871 is about 8944.3765014673. The cubic root of 80001871 is about 430.8902971029.

Adding to 80001871 its reverse (17810008), we get a palindrome (97811879).

The spelling of 80001871 in words is "eighty million, one thousand, eight hundred seventy-one".