23321623 has 4 divisors (see below), whose sum is σ = 25115608. Its totient is φ = 21527640.

The previous prime is 23321621. The next prime is 23321653. The reversal of 23321623 is 32612332.

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 23321623 - 2¹ = 23321621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23321594 and 23321603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23321621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896973 + ... + 896998.

It is an arithmetic number, because the mean of its divisors is an integer number (6278902).

Almost surely, 2^23321623 is an apocalyptic number.

23321623 is a deficient number, since it is larger than the sum of its proper divisors (1793985).

23321623 is a wasteful number, since it uses less digits than its factorization.

23321623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793984.

The product of its digits is 1296, while the sum is 22.

The square root of 23321623 is about 4829.2466286161. The cubic root of 23321623 is about 285.7061508279.

Adding to 23321623 its reverse (32612332), we get a palindrome (55933955).

The spelling of 23321623 in words is "twenty-three million, three hundred twenty-one thousand, six hundred twenty-three".