871992270 has 256 divisors, whose sum is σ = 2585088000. Its totient is φ = 208365696.

The previous prime is 871992263. The next prime is 871992281. The reversal of 871992270 is 72299178.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13014777 + ... + 13014843.

It is an arithmetic number, because the mean of its divisors is an integer number (10098000).

Almost surely, 2^871992270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 871992270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1292544000).

871992270 is an abundant number, since it is smaller than the sum of its proper divisors (1713095730).

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

871992270 is a wasteful number, since it uses less digits than its factorization.

871992270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 871992270 is about 29529.5152347613. The cubic root of 871992270 is about 955.3684131789.

The spelling of 871992270 in words is "eight hundred seventy-one million, nine hundred ninety-two thousand, two hundred seventy".