8722686 has 24 divisors (see below), whose sum is σ = 20294280. Its totient is φ = 2492112.

The previous prime is 8722673. The next prime is 8722711. The reversal of 8722686 is 6862278.

8722686 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14541 + ... + 15128.

It is an arithmetic number, because the mean of its divisors is an integer number (845595).

Almost surely, 2^8722686 is an apocalyptic number.

8722686 is an abundant number, since it is smaller than the sum of its proper divisors (11571594).

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

8722686 is a wasteful number, since it uses less digits than its factorization.

8722686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29688 (or 29681 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 8722686 is about 2953.4193742169. The cubic root of 8722686 is about 205.8496247584.

The spelling of 8722686 in words is "eight million, seven hundred twenty-two thousand, six hundred eighty-six".