871873740 has 96 divisors (see below), whose sum is σ = 2719200960. Its totient is φ = 231925248.

The previous prime is 871873727. The next prime is 871873753. The reversal of 871873740 is 47378178.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (871873727) and next prime (871873753).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 245014 + ... + 248546.

It is an arithmetic number, because the mean of its divisors is an integer number (28325010).

Almost surely, 2^871873740 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 871873740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1359600480).

871873740 is an abundant number, since it is smaller than the sum of its proper divisors (1847327220).

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

871873740 is a wasteful number, since it uses less digits than its factorization.

871873740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008 (or 4000 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 871873740 is about 29527.5081915152. The cubic root of 871873740 is about 955.3251234415.

The spelling of 871873740 in words is "eight hundred seventy-one million, eight hundred seventy-three thousand, seven hundred forty".