8263864 has 32 divisors (see below), whose sum is σ = 17831520. Its totient is φ = 3517056.

The previous prime is 8263859. The next prime is 8263889. The reversal of 8263864 is 4683628.

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, 9262 + ... + 10114.

It is an arithmetic number, because the mean of its divisors is an integer number (557235).

Almost surely, 2^8263864 is an apocalyptic number.

It is an amenable number.

8263864 is an abundant number, since it is smaller than the sum of its proper divisors (9567656).

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

8263864 is a wasteful number, since it uses less digits than its factorization.

8263864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1035 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 8263864 is about 2874.6937228164. The cubic root of 8263864 is about 202.1751250641.

The spelling of 8263864 in words is "eight million, two hundred sixty-three thousand, eight hundred sixty-four".