660233 has 8 divisors (see below), whose sum is σ = 759552. Its totient is φ = 562176.

The previous prime is 660227. The next prime is 660241. The reversal of 660233 is 332066.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 660233 - 2⁴ = 660217 is a prime.

It is a super-2 number, since 2×660233² = 871815228578, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 660233.

It is not an unprimeable number, because it can be changed into a prime (660733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1616 + ... + 1982.

It is an arithmetic number, because the mean of its divisors is an integer number (94944).

2⁶⁶⁰²³³ is an apocalyptic number.

It is an amenable number.

660233 is a deficient number, since it is larger than the sum of its proper divisors (99319).

660233 is a wasteful number, since it uses less digits than its factorization.

660233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 660233 is about 812.5472293965. The cubic root of 660233 is about 87.0761213373.

Adding to 660233 its reverse (332066), we get a palindrome (992299).

The spelling of 660233 in words is "six hundred sixty thousand, two hundred thirty-three".