23683521 has 8 divisors (see below), whose sum is σ = 31600800. Its totient is φ = 15777632.

The previous prime is 23683493. The next prime is 23683529. The reversal of 23683521 is 12538632.

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

It is a cyclic number.

It is not a de Polignac number, because 23683521 - 2⁷ = 23683393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23683529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5530 + ... + 8828.

It is an arithmetic number, because the mean of its divisors is an integer number (3950100).

Almost surely, 2^23683521 is an apocalyptic number.

It is an amenable number.

23683521 is a deficient number, since it is larger than the sum of its proper divisors (7917279).

23683521 is a wasteful number, since it uses less digits than its factorization.

23683521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5695.

The product of its digits is 8640, while the sum is 30.

The square root of 23683521 is about 4866.5717913126. The cubic root of 23683521 is about 287.1764061760.

The spelling of 23683521 in words is "twenty-three million, six hundred eighty-three thousand, five hundred twenty-one".