23666648 has 8 divisors (see below), whose sum is σ = 44374980. Its totient is φ = 11833320.

The previous prime is 23666627. The next prime is 23666677. The reversal of 23666648 is 84666632.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×23666648² = 1120220455111808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1479158 + ... + 1479173.

Almost surely, 2^23666648 is an apocalyptic number.

It is an amenable number.

23666648 is a deficient number, since it is larger than the sum of its proper divisors (20708332).

23666648 is a wasteful number, since it uses less digits than its factorization.

23666648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958337 (or 2958333 counting only the distinct ones).

The product of its digits is 248832, while the sum is 41.

The square root of 23666648 is about 4864.8379212467. The cubic root of 23666648 is about 287.1081916755.

The spelling of 23666648 in words is "twenty-three million, six hundred sixty-six thousand, six hundred forty-eight".