871684290 has 96 divisors (see below), whose sum is σ = 2323339200. Its totient is φ = 226673280.

The previous prime is 871684279. The next prime is 871684309. The reversal of 871684290 is 92486178.

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 47 ways as a sum of consecutive naturals, for example, 737500 + ... + 738680.

It is an arithmetic number, because the mean of its divisors is an integer number (24201450).

Almost surely, 2^871684290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 871684290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1161669600).

871684290 is an abundant number, since it is smaller than the sum of its proper divisors (1451654910).

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

871684290 is a wasteful number, since it uses less digits than its factorization.

871684290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 871684290 is about 29524.2999917018. The cubic root of 871684290 is about 955.2559240277.

The spelling of 871684290 in words is "eight hundred seventy-one million, six hundred eighty-four thousand, two hundred ninety".