23553923 has 4 divisors (see below), whose sum is σ = 23563800. Its totient is φ = 23544048.

The previous prime is 23553899. The next prime is 23553947. The reversal of 23553923 is 32935532.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (23553899) and next prime (23553947).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23553923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23553923.

It is not an unprimeable number, because it can be changed into a prime (23553953) 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, 1103 + ... + 6951.

It is an arithmetic number, because the mean of its divisors is an integer number (5890950).

Almost surely, 2^23553923 is an apocalyptic number.

23553923 is a deficient number, since it is larger than the sum of its proper divisors (9877).

23553923 is an equidigital number, since it uses as much as digits as its factorization.

23553923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9876.

The product of its digits is 24300, while the sum is 32.

The square root of 23553923 is about 4853.2384033756. The cubic root of 23553923 is about 286.6516308741.

The spelling of 23553923 in words is "twenty-three million, five hundred fifty-three thousand, nine hundred twenty-three".