80771 has 6 divisors (see below), whose sum is σ = 84420. Its totient is φ = 77256.

The previous prime is 80761. The next prime is 80777. The reversal of 80771 is 17708.

It is a de Polignac number, because none of the positive numbers 2^k-80771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1340 + ... + 1398.

It is an arithmetic number, because the mean of its divisors is an integer number (14070).

2⁸⁰⁷⁷¹ is an apocalyptic number.

80771 is a deficient number, since it is larger than the sum of its proper divisors (3649).

80771 is an equidigital number, since it uses as much as digits as its factorization.

80771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 80771 is about 284.2023926711. The cubic root of 80771 is about 43.2266739131.

It can be divided in two parts, 807 and 71, that added together give a palindrome (878).

The spelling of 80771 in words is "eighty thousand, seven hundred seventy-one".