866338 has 16 divisors (see below), whose sum is σ = 1446336. Its totient is φ = 385840.

The previous prime is 866329. The next prime is 866353. The reversal of 866338 is 833668.

It is an unprimeable number.

866338 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795 + ... + 1537.

It is an arithmetic number, because the mean of its divisors is an integer number (90396).

2⁸⁶⁶³³⁸ is an apocalyptic number.

866338 is a deficient number, since it is larger than the sum of its proper divisors (579998).

866338 is a wasteful number, since it uses less digits than its factorization.

866338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its digits is 20736, while the sum is 34.

The square root of 866338 is about 930.7727971960. The cubic root of 866338 is about 95.3298964752.

Multiplying 866338 by its sum of digits (34), we get a palindrome (29455492).

The spelling of 866338 in words is "eight hundred sixty-six thousand, three hundred thirty-eight".