845816533 has 8 divisors (see below), whose sum is σ = 857075648. Its totient is φ = 834616224.

The previous prime is 845816497. The next prime is 845816567. The reversal of 845816533 is 335618548.

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 845816533 - 2⁹ = 845816021 is a prime.

It is a super-2 number, since 2×845816533² = 1430811214992280178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 845816533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845816833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14641 + ... + 43657.

It is an arithmetic number, because the mean of its divisors is an integer number (107134456).

Almost surely, 2^845816533 is an apocalyptic number.

It is an amenable number.

845816533 is a deficient number, since it is larger than the sum of its proper divisors (11259115).

845816533 is a wasteful number, since it uses less digits than its factorization.

845816533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29403.

The product of its digits is 345600, while the sum is 43.

The square root of 845816533 is about 29082.9251107931. The cubic root of 845816533 is about 945.7116157645.

The spelling of 845816533 in words is "eight hundred forty-five million, eight hundred sixteen thousand, five hundred thirty-three".