866666333 has 8 divisors (see below), whose sum is σ = 955039008. Its totient is φ = 781394544.

The previous prime is 866666299. The next prime is 866666347. The reversal of 866666333 is 333666668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 866666333 - 2¹⁰ = 866665309 is a prime.

It is a super-3 number, since 3×866666333³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866666393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774635 + ... + 775752.

It is an arithmetic number, because the mean of its divisors is an integer number (119379876).

Almost surely, 2^866666333 is an apocalyptic number.

It is an amenable number.

866666333 is a deficient number, since it is larger than the sum of its proper divisors (88372675).

866666333 is a wasteful number, since it uses less digits than its factorization.

866666333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550443.

The product of its digits is 1679616, while the sum is 47.

The square root of 866666333 is about 29439.1972207124. The cubic root of 866666333 is about 953.4193796389.

The spelling of 866666333 in words is "eight hundred sixty-six million, six hundred sixty-six thousand, three hundred thirty-three".