23666223 has 8 divisors (see below), whose sum is σ = 36062848. Its totient is φ = 13523544.

The previous prime is 23666221. The next prime is 23666317. The reversal of 23666223 is 32266632.

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

It is not a de Polignac number, because 23666223 - 2¹ = 23666221 is a prime.

It is a super-2 number, since 2×23666223² = 1120180222171458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23666221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563461 + ... + 563502.

It is an arithmetic number, because the mean of its divisors is an integer number (4507856).

Almost surely, 2^23666223 is an apocalyptic number.

23666223 is a deficient number, since it is larger than the sum of its proper divisors (12396625).

23666223 is a wasteful number, since it uses less digits than its factorization.

23666223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126973.

The product of its digits is 15552, while the sum is 30.

The square root of 23666223 is about 4864.7942402531. The cubic root of 23666223 is about 287.1064730585.

The spelling of 23666223 in words is "twenty-three million, six hundred sixty-six thousand, two hundred twenty-three".