873213912 has 96 divisors (see below), whose sum is σ = 2493766800. Its totient is φ = 283108608.

The previous prime is 873213911. The next prime is 873213917. The reversal of 873213912 is 219312378.

It is a super-2 number, since 2×873213912² = 1525005072220687488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873213911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294228 + ... + 297180.

Almost surely, 2^873213912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 873213912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1246883400).

873213912 is an abundant number, since it is smaller than the sum of its proper divisors (1620552888).

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

873213912 is a wasteful number, since it uses less digits than its factorization.

873213912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3042 (or 2995 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 873213912 is about 29550.1930958158. The cubic root of 873213912 is about 955.8143550400.

The spelling of 873213912 in words is "eight hundred seventy-three million, two hundred thirteen thousand, nine hundred twelve".