866817224 has 48 divisors (see below), whose sum is σ = 2011360320. Its totient is φ = 342912960.

The previous prime is 866817209. The next prime is 866817227. The reversal of 866817224 is 422718668.

It is not an unprimeable number, because it can be changed into a prime (866817227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36332 + ... + 55259.

It is an arithmetic number, because the mean of its divisors is an integer number (41903340).

Almost surely, 2^866817224 is an apocalyptic number.

It is an amenable number.

866817224 is an abundant number, since it is smaller than the sum of its proper divisors (1144543096).

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

866817224 is a wasteful number, since it uses less digits than its factorization.

866817224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91630 (or 91613 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 866817224 is about 29441.7598658776. The cubic root of 866817224 is about 953.4747081430.

The spelling of 866817224 in words is "eight hundred sixty-six million, eight hundred seventeen thousand, two hundred twenty-four".