873321444 has 18 divisors (see below), whose sum is σ = 2207562630. Its totient is φ = 291107136.

The previous prime is 873321419. The next prime is 873321451. The reversal of 873321444 is 444123378.

873321444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 500059044 + 373262400 = 22362^2 + 19320^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 24258929 = 873321444 / (8 + 7 + 3 + 3 + 2 + 1 + 4 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 873321399 and 873321408.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12129429 + ... + 12129500.

Almost surely, 2^873321444 is an apocalyptic number.

It is an amenable number.

873321444 is an abundant number, since it is smaller than the sum of its proper divisors (1334241186).

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

873321444 is a wasteful number, since it uses less digits than its factorization.

873321444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24258939 (or 24258934 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 873321444 is about 29552.0125203005. The cubic root of 873321444 is about 955.8535880424.

The spelling of 873321444 in words is "eight hundred seventy-three million, three hundred twenty-one thousand, four hundred forty-four".