916780 has 24 divisors (see below), whose sum is σ = 2009952. Its totient is φ = 350592.

The previous prime is 916771. The next prime is 916781. The reversal of 916780 is 87619.

It is not an unprimeable number, because it can be changed into a prime (916781) by changing a digit.

916780 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537 + ... + 1456.

It is an arithmetic number, because the mean of its divisors is an integer number (83748).

2⁹¹⁶⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

916780 is an abundant number, since it is smaller than the sum of its proper divisors (1093172).

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

916780 is a wasteful number, since it uses less digits than its factorization.

916780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025 (or 2023 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 916780 is about 957.4862923301. The cubic root of 916780 is about 97.1452812873.

The spelling of 916780 in words is "nine hundred sixteen thousand, seven hundred eighty".