80011871 has 16 divisors (see below), whose sum is σ = 86413824. Its totient is φ = 73887264.

The previous prime is 80011861. The next prime is 80011879. The reversal of 80011871 is 17811008.

It is a cyclic number.

It is not a de Polignac number, because 80011871 - 2⁶ = 80011807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80011871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80011879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141836 + ... + 142398.

It is an arithmetic number, because the mean of its divisors is an integer number (5400864).

Almost surely, 2^80011871 is an apocalyptic number.

80011871 is a deficient number, since it is larger than the sum of its proper divisors (6401953).

80011871 is a wasteful number, since it uses less digits than its factorization.

80011871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 448, while the sum is 26.

The square root of 80011871 is about 8944.9354944572. The cubic root of 80011871 is about 430.9082496975.

Adding to 80011871 its reverse (17811008), we get a palindrome (97822879).

The spelling of 80011871 in words is "eighty million, eleven thousand, eight hundred seventy-one".