83161844 has 6 divisors (see below), whose sum is σ = 145533234. Its totient is φ = 41580920.

The previous prime is 83161831. The next prime is 83161861. The reversal of 83161844 is 44816138.

It can be written as a sum of positive squares in only one way, i.e., 82992100 + 169744 = 9110^2 + 412^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10395227 + ... + 10395234.

It is an arithmetic number, because the mean of its divisors is an integer number (24255539).

Almost surely, 2^83161844 is an apocalyptic number.

It is an amenable number.

83161844 is a deficient number, since it is larger than the sum of its proper divisors (62371390).

83161844 is a wasteful number, since it uses less digits than its factorization.

83161844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20790465 (or 20790463 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 83161844 is about 9119.3115968257. The cubic root of 83161844 is about 436.4904071437.

The spelling of 83161844 in words is "eighty-three million, one hundred sixty-one thousand, eight hundred forty-four".