23215623 has 8 divisors (see below), whose sum is σ = 30977136. Its totient is φ = 15465600.

The previous prime is 23215597. The next prime is 23215667. The reversal of 23215623 is 32651232.

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

It is not a de Polignac number, because 23215623 - 2⁹ = 23215111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23215593 and 23215602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23215223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4693 + ... + 8273.

It is an arithmetic number, because the mean of its divisors is an integer number (3872142).

Almost surely, 2^23215623 is an apocalyptic number.

23215623 is a deficient number, since it is larger than the sum of its proper divisors (7761513).

23215623 is a wasteful number, since it uses less digits than its factorization.

23215623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5745.

The product of its digits is 2160, while the sum is 24.

The square root of 23215623 is about 4818.2593329957. The cubic root of 23215623 is about 285.2726353854.

Adding to 23215623 its reverse (32651232), we get a palindrome (55866855).

The spelling of 23215623 in words is "twenty-three million, two hundred fifteen thousand, six hundred twenty-three".