871513220 has 96 divisors (see below), whose sum is σ = 1972010880. Its totient is φ = 322882560.

The previous prime is 871513219. The next prime is 871513259. The reversal of 871513220 is 22315178.

871513220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1592987 + ... + 1593533.

It is an arithmetic number, because the mean of its divisors is an integer number (20541780).

Almost surely, 2^871513220 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 871513220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (986005440).

871513220 is an abundant number, since it is smaller than the sum of its proper divisors (1100497660).

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

871513220 is a wasteful number, since it uses less digits than its factorization.

871513220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 871513220 is about 29521.4027444497. The cubic root of 871513220 is about 955.1934295656.

Adding to 871513220 its reverse (22315178), we get a palindrome (893828398).

The spelling of 871513220 in words is "eight hundred seventy-one million, five hundred thirteen thousand, two hundred twenty".