666033 has 4 divisors (see below), whose sum is σ = 888048. Its totient is φ = 444020.

The previous prime is 666031. The next prime is 666041. The reversal of 666033 is 330666.

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 a cyclic number.

It is not a de Polignac number, because 666033 - 2¹ = 666031 is a prime.

It is a D-number.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 665994 and 666012.

It is not an unprimeable number, because it can be changed into a prime (666031) 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, 111003 + ... + 111008.

It is an arithmetic number, because the mean of its divisors is an integer number (222012).

2⁶⁶⁶⁰³³ is an apocalyptic number.

It is an amenable number.

666033 is a deficient number, since it is larger than the sum of its proper divisors (222015).

666033 is a wasteful number, since it uses less digits than its factorization.

666033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222014.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 666033 is about 816.1084486758. The cubic root of 666033 is about 87.3303597586.

Adding to 666033 its reverse (330666), we get a palindrome (996699).

It can be divided in two parts, 66603 and 3, that multiplied together give a square (199809 = 447²).

The spelling of 666033 in words is "six hundred sixty-six thousand, thirty-three".