871967140 has 36 divisors (see below), whose sum is σ = 2012736348. Its totient is φ = 317078080.

The previous prime is 871967137. The next prime is 871967147. The reversal of 871967140 is 41769178.

It can be written as a sum of positive squares in 2 ways, for example, as 202606756 + 669360384 = 14234^2 + 25872^2 .

It is not an unprimeable number, because it can be changed into a prime (871967147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177739 + ... + 182578.

It is an arithmetic number, because the mean of its divisors is an integer number (55909343).

Almost surely, 2^871967140 is an apocalyptic number.

It is an amenable number.

871967140 is an abundant number, since it is smaller than the sum of its proper divisors (1140769208).

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

871967140 is a wasteful number, since it uses less digits than its factorization.

871967140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360348 (or 360335 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 871967140 is about 29529.0897252184. The cubic root of 871967140 is about 955.3592354833.

The spelling of 871967140 in words is "eight hundred seventy-one million, nine hundred sixty-seven thousand, one hundred forty".