845864628 has 48 divisors (see below), whose sum is σ = 2265540480. Its totient is φ = 240614784.

The previous prime is 845864627. The next prime is 845864681. The reversal of 845864628 is 826468548.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845864627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2751 + ... + 41222.

It is an arithmetic number, because the mean of its divisors is an integer number (47198760).

Almost surely, 2^845864628 is an apocalyptic number.

It is an amenable number.

845864628 is an abundant number, since it is smaller than the sum of its proper divisors (1419675852).

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

845864628 is a wasteful number, since it uses less digits than its factorization.

845864628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44216 (or 44214 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 51.

The square root of 845864628 is about 29083.7519587828. The cubic root of 845864628 is about 945.7295405099.

The spelling of 845864628 in words is "eight hundred forty-five million, eight hundred sixty-four thousand, six hundred twenty-eight".