23306666 has 4 divisors (see below), whose sum is σ = 34960002. Its totient is φ = 11653332.

The previous prime is 23306653. The next prime is 23306669. The reversal of 23306666 is 66660332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13875625 + 9431041 = 3725^2 + 3071^2 .

23306666 is a modest number, since divided by 6666 gives 2330 as remainder.

It is not an unprimeable number, because it can be changed into a prime (23306669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5826665 + ... + 5826668.

Almost surely, 2^23306666 is an apocalyptic number.

23306666 is a deficient number, since it is larger than the sum of its proper divisors (11653336).

23306666 is a wasteful number, since it uses less digits than its factorization.

23306666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11653335.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 23306666 is about 4827.6977950158. The cubic root of 23306666 is about 285.6450598715.

Adding to 23306666 its reverse (66660332), we get a palindrome (89966998).

The spelling of 23306666 in words is "twenty-three million, three hundred six thousand, six hundred sixty-six".