80873 has 4 divisors (see below), whose sum is σ = 87108. Its totient is φ = 74640.

The previous prime is 80863. The next prime is 80897. The reversal of 80873 is 37808.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6889 + 73984 = 83^2 + 272^2 .

It is a cyclic number.

It is not a de Polignac number, because 80873 - 2⁶ = 80809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80803) 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 in 3 ways as a sum of consecutive naturals, for example, 3098 + ... + 3123.

It is an arithmetic number, because the mean of its divisors is an integer number (21777).

2⁸⁰⁸⁷³ is an apocalyptic number.

It is an amenable number.

80873 is a deficient number, since it is larger than the sum of its proper divisors (6235).

80873 is a wasteful number, since it uses less digits than its factorization.

80873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6234.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 80873 is about 284.3817856333. The cubic root of 80873 is about 43.2448622318.

The spelling of 80873 in words is "eighty thousand, eight hundred seventy-three".