845456 has 20 divisors (see below), whose sum is σ = 1670652. Its totient is φ = 414336.

The previous prime is 845447. The next prime is 845459. The reversal of 845456 is 654548.

It can be written as a sum of positive squares in 2 ways, for example, as 672400 + 173056 = 820^2 + 416^2 .

It is not an unprimeable number, because it can be changed into a prime (845459) by changing a digit.

845456 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, 350 + ... + 1346.

2⁸⁴⁵⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

845456 is a deficient number, since it is larger than the sum of its proper divisors (825196).

845456 is a wasteful number, since it uses less digits than its factorization.

845456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058 (or 1052 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

The square root of 845456 is about 919.4868133910. The cubic root of 845456 is about 94.5577225429.

The spelling of 845456 in words is "eight hundred forty-five thousand, four hundred fifty-six".