6660233 has 2 divisors, whose sum is σ = 6660234. Its totient is φ = 6660232.

The previous prime is 6660221. The next prime is 6660239. The reversal of 6660233 is 3320666.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4609609 + 2050624 = 2147^2 + 1432^2 .

It is a cyclic number.

It is not a de Polignac number, because 6660233 - 2⁴ = 6660217 is a prime.

It is a super-2 number, since 2×6660233² = 88717407228578, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6660239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3330116 + 3330117.

It is an arithmetic number, because the mean of its divisors is an integer number (3330117).

Almost surely, 2^6660233 is an apocalyptic number.

It is an amenable number.

6660233 is a deficient number, since it is larger than the sum of its proper divisors (1).

6660233 is an equidigital number, since it uses as much as digits as its factorization.

6660233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 6660233 is about 2580.7427225510. The cubic root of 6660233 is about 188.1466431687.

Adding to 6660233 its reverse (3320666), we get a palindrome (9980899).

The spelling of 6660233 in words is "six million, six hundred sixty thousand, two hundred thirty-three".