873783872 has 56 divisors (see below), whose sum is σ = 1873748856. Its totient is φ = 401891328.

The previous prime is 873783839. The next prime is 873783881. The reversal of 873783872 is 278387378.

It can be written as a sum of positive squares in 4 ways, for example, as 27206656 + 846577216 = 5216^2 + 29096^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262088 + ... + 265400.

It is an arithmetic number, because the mean of its divisors is an integer number (33459801).

Almost surely, 2^873783872 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 873783872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (936874428).

873783872 is an abundant number, since it is smaller than the sum of its proper divisors (999964984).

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

873783872 is a wasteful number, since it uses less digits than its factorization.

873783872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655 (or 3645 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 53.

The square root of 873783872 is about 29559.8354528573. The cubic root of 873783872 is about 956.0222679990.

The spelling of 873783872 in words is "eight hundred seventy-three million, seven hundred eighty-three thousand, eight hundred seventy-two".