839881845 has 64 divisors (see below), whose sum is σ = 1635655680. Its totient is φ = 405518400.

The previous prime is 839881837. The next prime is 839881877. The reversal of 839881845 is 548188938.

839881845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 839881845 - 2³ = 839881837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 839881791 and 839881800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 401392 + ... + 403478.

It is an arithmetic number, because the mean of its divisors is an integer number (25557120).

Almost surely, 2^839881845 is an apocalyptic number.

It is an amenable number.

839881845 is a deficient number, since it is larger than the sum of its proper divisors (795773835).

839881845 is a wasteful number, since it uses less digits than its factorization.

839881845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2383 (or 2377 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The square root of 839881845 is about 28980.7150532902. The cubic root of 839881845 is about 943.4945543752.

The spelling of 839881845 in words is "eight hundred thirty-nine million, eight hundred eighty-one thousand, eight hundred forty-five".