23923923 has 4 divisors (see below), whose sum is σ = 31898568. Its totient is φ = 15949280.

The previous prime is 23923903. The next prime is 23923931. The reversal of 23923923 is 32932932.

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

It is a cyclic number.

It is not a de Polignac number, because 23923923 - 2¹⁴ = 23907539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23923903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3987318 + ... + 3987323.

It is an arithmetic number, because the mean of its divisors is an integer number (7974642).

Almost surely, 2^23923923 is an apocalyptic number.

23923923 is a deficient number, since it is larger than the sum of its proper divisors (7974645).

23923923 is an equidigital number, since it uses as much as digits as its factorization.

23923923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7974644.

The product of its digits is 17496, while the sum is 33.

The square root of 23923923 is about 4891.2087463121. The cubic root of 23923923 is about 288.1448080610.

Subtracting 23923923 from its reverse (32932932), we obtain a palindrome (9009009).

The spelling of 23923923 in words is "twenty-three million, nine hundred twenty-three thousand, nine hundred twenty-three".