845316 has 30 divisors (see below), whose sum is σ = 2210670. Its totient is φ = 281664.

The previous prime is 845309. The next prime is 845333. The reversal of 845316 is 613548.

It can be written as a sum of positive squares in only one way, i.e., 715716 + 129600 = 846^2 + 360^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 845316.

It is an unprimeable number.

845316 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 9 ways as a sum of consecutive naturals, for example, 981 + ... + 1628.

It is an arithmetic number, because the mean of its divisors is an integer number (73689).

2⁸⁴⁵³¹⁶ is an apocalyptic number.

It is an amenable number.

845316 is an abundant number, since it is smaller than the sum of its proper divisors (1365354).

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

845316 is a wasteful number, since it uses less digits than its factorization.

845316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625 (or 2614 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 845316 is about 919.4106808168. The cubic root of 845316 is about 94.5525029486.

The spelling of 845316 in words is "eight hundred forty-five thousand, three hundred sixteen".