23387443 has 2 divisors, whose sum is σ = 23387444. Its totient is φ = 23387442.

The previous prime is 23387437. The next prime is 23387447. The reversal of 23387443 is 34478332.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23387443 - 2¹⁷ = 23256371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23387399 and 23387408.

It is not a weakly prime, because it can be changed into another prime (23387447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11693721 + 11693722.

It is an arithmetic number, because the mean of its divisors is an integer number (11693722).

Almost surely, 2^23387443 is an apocalyptic number.

23387443 is a deficient number, since it is larger than the sum of its proper divisors (1).

23387443 is an equidigital number, since it uses as much as digits as its factorization.

23387443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 34.

The square root of 23387443 is about 4836.0565546734. The cubic root of 23387443 is about 285.9746786717.

The spelling of 23387443 in words is "twenty-three million, three hundred eighty-seven thousand, four hundred forty-three".