23820923 has 4 divisors (see below), whose sum is σ = 27223920. Its totient is φ = 20417928.

The previous prime is 23820883. The next prime is 23820931. The reversal of 23820923 is 32902832.

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 23820923 - 2¹⁶ = 23755387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23820943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701488 + ... + 1701501.

It is an arithmetic number, because the mean of its divisors is an integer number (6805980).

Almost surely, 2^23820923 is an apocalyptic number.

23820923 is a deficient number, since it is larger than the sum of its proper divisors (3402997).

23820923 is an equidigital number, since it uses as much as digits as its factorization.

23820923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402996.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 23820923 is about 4880.6682944040. The cubic root of 23820923 is about 287.7306952397.

The spelling of 23820923 in words is "twenty-three million, eight hundred twenty thousand, nine hundred twenty-three".