847871868 has 48 divisors (see below), whose sum is σ = 2017326080. Its totient is φ = 277098624.

The previous prime is 847871863. The next prime is 847871873. The reversal of 847871868 is 868178748.

It is an interprime number because it is at equal distance from previous prime (847871863) and next prime (847871873).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847871861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176928 + ... + 181656.

Almost surely, 2^847871868 is an apocalyptic number.

It is an amenable number.

847871868 is an abundant number, since it is smaller than the sum of its proper divisors (1169454212).

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

847871868 is a wasteful number, since it uses less digits than its factorization.

847871868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026 (or 5024 counting only the distinct ones).

The product of its digits is 4816896, while the sum is 57.

The square root of 847871868 is about 29118.2394385375. The cubic root of 847871868 is about 946.4770228350.

The spelling of 847871868 in words is "eight hundred forty-seven million, eight hundred seventy-one thousand, eight hundred sixty-eight".