8687817948 has 24 divisors (see below), whose sum is σ = 20499348240. Its totient is φ = 2863400320.

The previous prime is 8687817881. The next prime is 8687818019. The reversal of 8687817948 is 8497187868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4066263 + ... + 4068398.

It is an arithmetic number, because the mean of its divisors is an integer number (854139510).

Almost surely, 2^8687817948 is an apocalyptic number.

It is an amenable number.

8687817948 is an abundant number, since it is smaller than the sum of its proper divisors (11811530292).

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

8687817948 is a wasteful number, since it uses less digits than its factorization.

8687817948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8134757 (or 8134755 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 66.

The square root of 8687817948 is about 93208.4650018441. The cubic root of 8687817948 is about 2055.7497080462.

The spelling of 8687817948 in words is "eight billion, six hundred eighty-seven million, eight hundred seventeen thousand, nine hundred forty-eight".