844906161 has 16 divisors (see below), whose sum is σ = 1245792960. Its totient is φ = 505048320.

The previous prime is 844906159. The next prime is 844906189. The reversal of 844906161 is 161609448.

It is not a de Polignac number, because 844906161 - 2¹ = 844906159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (844906151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172956 + ... + 177773.

It is an arithmetic number, because the mean of its divisors is an integer number (77862060).

Almost surely, 2^844906161 is an apocalyptic number.

It is an amenable number.

844906161 is a deficient number, since it is larger than the sum of its proper divisors (400886799).

844906161 is a wasteful number, since it uses less digits than its factorization.

844906161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350816.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 844906161 is about 29067.2695828143. The cubic root of 844906161 is about 945.3721968271.

The spelling of 844906161 in words is "eight hundred forty-four million, nine hundred six thousand, one hundred sixty-one".