23415923 has 4 divisors (see below), whose sum is σ = 24648360. Its totient is φ = 22183488.

The previous prime is 23415911. The next prime is 23415929. The reversal of 23415923 is 32951432.

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

It is not a de Polignac number, because 23415923 - 2⁶ = 23415859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23415929) 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, 616190 + ... + 616227.

It is an arithmetic number, because the mean of its divisors is an integer number (6162090).

Almost surely, 2^23415923 is an apocalyptic number.

23415923 is a deficient number, since it is larger than the sum of its proper divisors (1232437).

23415923 is a wasteful number, since it uses less digits than its factorization.

23415923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232436.

The product of its digits is 6480, while the sum is 29.

The square root of 23415923 is about 4839.0002066543. Note that the first 3 decimals coincide. The cubic root of 23415923 is about 286.0907132332.

The spelling of 23415923 in words is "twenty-three million, four hundred fifteen thousand, nine hundred twenty-three".