871645088 has 24 divisors (see below), whose sum is σ = 1755962208. Its totient is φ = 425686464.

The previous prime is 871645087. The next prime is 871645091. The reversal of 871645088 is 880546178.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (871645081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315356 + ... + 318107.

It is an arithmetic number, because the mean of its divisors is an integer number (73165092).

Almost surely, 2^871645088 is an apocalyptic number.

It is an amenable number.

871645088 is an abundant number, since it is smaller than the sum of its proper divisors (884317120).

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

871645088 is a wasteful number, since it uses less digits than its factorization.

871645088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633516 (or 633508 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 871645088 is about 29523.6360904276. The cubic root of 871645088 is about 955.2416036655.

The spelling of 871645088 in words is "eight hundred seventy-one million, six hundred forty-five thousand, eighty-eight".