23553943 has 8 divisors (see below), whose sum is σ = 26948480. Its totient is φ = 20166840.

The previous prime is 23553899. The next prime is 23553947. The reversal of 23553943 is 34935532.

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

It is a cyclic number.

It is not a de Polignac number, because 23553943 - 2¹⁷ = 23422871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23553899 and 23553908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23553947) 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, 9988 + ... + 12118.

It is an arithmetic number, because the mean of its divisors is an integer number (3368560).

Almost surely, 2^23553943 is an apocalyptic number.

23553943 is a deficient number, since it is larger than the sum of its proper divisors (3394537).

23553943 is a wasteful number, since it uses less digits than its factorization.

23553943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3717.

The product of its digits is 48600, while the sum is 34.

The square root of 23553943 is about 4853.2404638551. The cubic root of 23553943 is about 286.6517120076.

The spelling of 23553943 in words is "twenty-three million, five hundred fifty-three thousand, nine hundred forty-three".