851080 has 16 divisors (see below), whose sum is σ = 1915020. Its totient is φ = 340416.

The previous prime is 851057. The next prime is 851087. The reversal of 851080 is 80158.

851080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 749956 + 101124 = 866^2 + 318^2 .

It is not an unprimeable number, because it can be changed into a prime (851087) by changing a digit.

851080 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10599 + ... + 10678.

2⁸⁵¹⁰⁸⁰ is an apocalyptic number.

It is an amenable number.

851080 is an abundant number, since it is smaller than the sum of its proper divisors (1063940).

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

851080 is a wasteful number, since it uses less digits than its factorization.

851080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21288 (or 21284 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 851080 is about 922.5399720337. The cubic root of 851080 is about 94.7669263347.

The spelling of 851080 in words is "eight hundred fifty-one thousand, eighty".