873489645 has 48 divisors (see below), whose sum is σ = 1733277312. Its totient is φ = 398632320.

The previous prime is 873489623. The next prime is 873489647. The reversal of 873489645 is 546984378.

It is not a de Polignac number, because 873489645 - 2⁵ = 873489613 is a prime.

It is a super-3 number, since 3×873489645³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 873489591 and 873489600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873489647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 215659 + ... + 219671.

It is an arithmetic number, because the mean of its divisors is an integer number (36109944).

Almost surely, 2^873489645 is an apocalyptic number.

It is an amenable number.

873489645 is a deficient number, since it is larger than the sum of its proper divisors (859787667).

873489645 is a wasteful number, since it uses less digits than its factorization.

873489645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4722 (or 4719 counting only the distinct ones).

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

The square root of 873489645 is about 29554.8582300778. The cubic root of 873489645 is about 955.9149496445.

The spelling of 873489645 in words is "eight hundred seventy-three million, four hundred eighty-nine thousand, six hundred forty-five".