845628685 has 8 divisors (see below), whose sum is σ = 1107004896. Its totient is φ = 615002640.

The previous prime is 845628683. The next prime is 845628701. The reversal of 845628685 is 586826548.

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

It is not a de Polignac number, because 845628685 - 2¹ = 845628683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845628683) 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, 7687479 + ... + 7687588.

It is an arithmetic number, because the mean of its divisors is an integer number (138375612).

Almost surely, 2^845628685 is an apocalyptic number.

It is an amenable number.

845628685 is a deficient number, since it is larger than the sum of its proper divisors (261376211).

845628685 is a wasteful number, since it uses less digits than its factorization.

845628685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15375083.

The product of its digits is 3686400, while the sum is 52.

The square root of 845628685 is about 29079.6954076208. The cubic root of 845628685 is about 945.6415993240.

The spelling of 845628685 in words is "eight hundred forty-five million, six hundred twenty-eight thousand, six hundred eighty-five".