873984645 has 24 divisors (see below), whose sum is σ = 1515650136. Its totient is φ = 465896448.

The previous prime is 873984611. The next prime is 873984673. The reversal of 873984645 is 546489378.

873984645 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 4 ways, for example, as 480398724 + 393585921 = 21918^2 + 19839^2 .

It is not a de Polignac number, because 873984645 - 2¹⁴ = 873968261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 873984591 and 873984600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129597 + ... + 136173.

It is an arithmetic number, because the mean of its divisors is an integer number (63152089).

Almost surely, 2^873984645 is an apocalyptic number.

It is an amenable number.

873984645 is a deficient number, since it is larger than the sum of its proper divisors (641665491).

873984645 is a wasteful number, since it uses less digits than its factorization.

873984645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9541 (or 9538 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 873984645 is about 29563.2313017370. The cubic root of 873984645 is about 956.0954854790.

The spelling of 873984645 in words is "eight hundred seventy-three million, nine hundred eighty-four thousand, six hundred forty-five".