845533 has 8 divisors (see below), whose sum is σ = 918008. Its totient is φ = 774144.

The previous prime is 845531. The next prime is 845567. The reversal of 845533 is 335548.

It can be written as a sum of positive squares in 4 ways, for example, as 2809 + 842724 = 53^2 + 918^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 845533 - 2¹ = 845531 is a prime.

845533 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845531) by changing a digit.

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, 2341 + ... + 2677.

It is an arithmetic number, because the mean of its divisors is an integer number (114751).

2⁸⁴⁵⁵³³ is an apocalyptic number.

It is an amenable number.

845533 is a deficient number, since it is larger than the sum of its proper divisors (72475).

845533 is a wasteful number, since it uses less digits than its factorization.

845533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543.

The product of its digits is 7200, while the sum is 28.

The square root of 845533 is about 919.5286836200. The cubic root of 845533 is about 94.5605930742.

It can be divided in two parts, 845 and 533, that added together give a triangular number (1378 = T₅₂).

The spelling of 845533 in words is "eight hundred forty-five thousand, five hundred thirty-three".