866103 has 8 divisors (see below), whose sum is σ = 1319808. Its totient is φ = 494904.

The previous prime is 866101. The next prime is 866119. The reversal of 866103 is 301668.

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

It is not a de Polignac number, because 866103 - 2¹ = 866101 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

866103 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20601 + ... + 20642.

It is an arithmetic number, because the mean of its divisors is an integer number (164976).

2⁸⁶⁶¹⁰³ is an apocalyptic number.

866103 is a deficient number, since it is larger than the sum of its proper divisors (453705).

866103 is a wasteful number, since it uses less digits than its factorization.

866103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41253.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 866103 is about 930.6465494483. The cubic root of 866103 is about 95.3212760709.

It can be divided in two parts, 866 and 103, that multiplied together give a palindrome (89198).

The spelling of 866103 in words is "eight hundred sixty-six thousand, one hundred three".