845445684 has 36 divisors (see below), whose sum is σ = 2062221056. Its totient is φ = 269560368.

The previous prime is 845445673. The next prime is 845445691. The reversal of 845445684 is 486544548.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60244 + ... + 72939.

Almost surely, 2^845445684 is an apocalyptic number.

It is an amenable number.

845445684 is an abundant number, since it is smaller than the sum of its proper divisors (1216775372).

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

845445684 is a wasteful number, since it uses less digits than its factorization.

845445684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133236 (or 133211 counting only the distinct ones).

The product of its digits is 2457600, while the sum is 48.

The square root of 845445684 is about 29076.5486947815. The cubic root of 845445684 is about 945.5733795304.

The spelling of 845445684 in words is "eight hundred forty-five million, four hundred forty-five thousand, six hundred eighty-four".