23001743 has 4 divisors (see below), whose sum is σ = 23110968. Its totient is φ = 22892520.

The previous prime is 23001739. The next prime is 23001767. The reversal of 23001743 is 34710032.

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 23001743 - 2² = 23001739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54296 + ... + 54717.

It is an arithmetic number, because the mean of its divisors is an integer number (5777742).

Almost surely, 2^23001743 is an apocalyptic number.

23001743 is a deficient number, since it is larger than the sum of its proper divisors (109225).

23001743 is a wasteful number, since it uses less digits than its factorization.

23001743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109224.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 23001743 is about 4796.0132401819. The cubic root of 23001743 is about 284.3938816590.

Adding to 23001743 its reverse (34710032), we get a palindrome (57711775).

The spelling of 23001743 in words is "twenty-three million, one thousand, seven hundred forty-three".