866033 has 4 divisors (see below), whose sum is σ = 989760. Its totient is φ = 742308.

The previous prime is 866029. The next prime is 866051. The reversal of 866033 is 330668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 866033 - 2² = 866029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 865993 and 866011.

It is not an unprimeable number, because it can be changed into a prime (866003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61853 + ... + 61866.

It is an arithmetic number, because the mean of its divisors is an integer number (247440).

2⁸⁶⁶⁰³³ is an apocalyptic number.

It is an amenable number.

866033 is a deficient number, since it is larger than the sum of its proper divisors (123727).

866033 is a wasteful number, since it uses less digits than its factorization.

866033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123726.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 866033 is about 930.6089404256. The cubic root of 866033 is about 95.3187079894.

The spelling of 866033 in words is "eight hundred sixty-six thousand, thirty-three".