8722866 has 16 divisors (see below), whose sum is σ = 17474688. Its totient is φ = 2902800.

The previous prime is 8722859. The next prime is 8722877. The reversal of 8722866 is 6682278.

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, 6471 + ... + 7701.

It is an arithmetic number, because the mean of its divisors is an integer number (1092168).

Almost surely, 2^8722866 is an apocalyptic number.

8722866 is an abundant number, since it is smaller than the sum of its proper divisors (8751822).

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

8722866 is a wasteful number, since it uses less digits than its factorization.

8722866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417.

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

The square root of 8722866 is about 2953.4498472126. The cubic root of 8722866 is about 205.8510407090.

The spelling of 8722866 in words is "eight million, seven hundred twenty-two thousand, eight hundred sixty-six".