866733 has 16 divisors (see below), whose sum is σ = 1334400. Its totient is φ = 490176.

The previous prime is 866717. The next prime is 866737. The reversal of 866733 is 337668.

It is a happy number.

It is not a de Polignac number, because 866733 - 2⁴ = 866717 is a prime.

It is a super-3 number, since 3×866733³ = 1953337336543964511, which contains 333 as substring.

It is a d-powerful number, because it can be written as 8⁵ + 6³ + 7⁷ + 6⁵ + 3⁵ + 3⁷ .

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 866694 and 866703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2991 + ... + 3267.

It is an arithmetic number, because the mean of its divisors is an integer number (83400).

2⁸⁶⁶⁷³³ is an apocalyptic number.

It is an amenable number.

866733 is a deficient number, since it is larger than the sum of its proper divisors (467667).

866733 is a wasteful number, since it uses less digits than its factorization.

866733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436.

The product of its digits is 18144, while the sum is 33.

The square root of 866733 is about 930.9849622846. The cubic root of 866733 is about 95.3443825794.

The spelling of 866733 in words is "eight hundred sixty-six thousand, seven hundred thirty-three".