80780 has 24 divisors (see below), whose sum is σ = 194208. Its totient is φ = 27648.

The previous prime is 80779. The next prime is 80783. The reversal of 80780 is 8708.

It is not an unprimeable number, because it can be changed into a prime (80783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149 + ... + 428.

It is an arithmetic number, because the mean of its divisors is an integer number (8092).

2⁸⁰⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

80780 is an abundant number, since it is smaller than the sum of its proper divisors (113428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97104).

80780 is a wasteful number, since it uses less digits than its factorization.

80780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 80780 is about 284.2182260166. The cubic root of 80780 is about 43.2282793805.

The spelling of 80780 in words is "eighty thousand, seven hundred eighty".