847715968 has 64 divisors (see below), whose sum is σ = 1922512320. Its totient is φ = 368558080.

The previous prime is 847715929. The next prime is 847715969. The reversal of 847715968 is 869517748.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (847715969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19296 + ... + 45472.

It is an arithmetic number, because the mean of its divisors is an integer number (30039255).

Almost surely, 2^847715968 is an apocalyptic number.

847715968 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 847715968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (961256160).

847715968 is an abundant number, since it is smaller than the sum of its proper divisors (1074796352).

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

847715968 is a wasteful number, since it uses less digits than its factorization.

847715968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26225 (or 26213 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 55.

The square root of 847715968 is about 29115.5622992241. The cubic root of 847715968 is about 946.4190090328.

The spelling of 847715968 in words is "eight hundred forty-seven million, seven hundred fifteen thousand, nine hundred sixty-eight".