80983844 has 18 divisors (see below), whose sum is σ = 144109602. Its totient is φ = 39820800.

The previous prime is 80983843. The next prime is 80983879. The reversal of 80983844 is 44838908.

It can be written as a sum of positive squares in 3 ways, for example, as 702244 + 80281600 = 838^2 + 8960^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80983795 and 80983804.

It is not an unprimeable number, because it can be changed into a prime (80983843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12164 + ... + 17604.

It is an arithmetic number, because the mean of its divisors is an integer number (8006089).

Almost surely, 2^80983844 is an apocalyptic number.

It is an amenable number.

80983844 is a deficient number, since it is larger than the sum of its proper divisors (63125758).

80983844 is a wasteful number, since it uses less digits than its factorization.

80983844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5567 (or 5504 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 80983844 is about 8999.1023996841. The cubic root of 80983844 is about 432.6461025325.

The spelling of 80983844 in words is "eighty million, nine hundred eighty-three thousand, eight hundred forty-four".