23997743 has 8 divisors (see below), whose sum is σ = 29919360. Its totient is φ = 18699480.

The previous prime is 23997731. The next prime is 23997749. The reversal of 23997743 is 34779932.

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 23997743 - 2¹⁰ = 23996719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23997694 and 23997703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23997749) 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, 155753 + ... + 155906.

It is an arithmetic number, because the mean of its divisors is an integer number (3739920).

Almost surely, 2^23997743 is an apocalyptic number.

23997743 is a deficient number, since it is larger than the sum of its proper divisors (5921617).

23997743 is a wasteful number, since it uses less digits than its factorization.

23997743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311677.

The product of its digits is 285768, while the sum is 44.

The square root of 23997743 is about 4898.7491260525. The cubic root of 23997743 is about 288.4408716745.

The spelling of 23997743 in words is "twenty-three million, nine hundred ninety-seven thousand, seven hundred forty-three".