23868666 has 12 divisors (see below), whose sum is σ = 51715482. Its totient is φ = 7956216.

The previous prime is 23868661. The next prime is 23868671. The reversal of 23868666 is 66686832.

It is an interprime number because it is at equal distance from previous prime (23868661) and next prime (23868671).

It can be written as a sum of positive squares in only one way, i.e., 23765625 + 103041 = 4875^2 + 321^2 .

It is not an unprimeable number, because it can be changed into a prime (23868661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 663001 + ... + 663036.

Almost surely, 2^23868666 is an apocalyptic number.

23868666 is an abundant number, since it is smaller than the sum of its proper divisors (27846816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23868666 is a wasteful number, since it uses less digits than its factorization.

23868666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326045 (or 1326042 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 23868666 is about 4885.5568771635. The cubic root of 23868666 is about 287.9227946986.

The spelling of 23868666 in words is "twenty-three million, eight hundred sixty-eight thousand, six hundred sixty-six".