871949800 has 24 divisors (see below), whose sum is σ = 2027283750. Its totient is φ = 348779840.

The previous prime is 871949797. The next prime is 871949801. The reversal of 871949800 is 8949178.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 527253444 + 344696356 = 22962^2 + 18566^2 .

It is not an unprimeable number, because it can be changed into a prime (871949801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2179675 + ... + 2180074.

Almost surely, 2^871949800 is an apocalyptic number.

It is an amenable number.

871949800 is an abundant number, since it is smaller than the sum of its proper divisors (1155333950).

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

871949800 is a wasteful number, since it uses less digits than its factorization.

871949800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4359765 (or 4359756 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 871949800 is about 29528.7961149790. The cubic root of 871949800 is about 955.3529026610.

The spelling of 871949800 in words is "eight hundred seventy-one million, nine hundred forty-nine thousand, eight hundred".