23385749 has 4 divisors (see below), whose sum is σ = 24140160. Its totient is φ = 22631340.

The previous prime is 23385737. The next prime is 23385781. The reversal of 23385749 is 94758332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23385749 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 (23385799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377159 + ... + 377220.

It is an arithmetic number, because the mean of its divisors is an integer number (6035040).

Almost surely, 2^23385749 is an apocalyptic number.

It is an amenable number.

23385749 is a deficient number, since it is larger than the sum of its proper divisors (754411).

23385749 is an equidigital number, since it uses as much as digits as its factorization.

23385749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754410.

The product of its digits is 181440, while the sum is 41.

The square root of 23385749 is about 4835.8814088023. The cubic root of 23385749 is about 285.9677739294.

The spelling of 23385749 in words is "twenty-three million, three hundred eighty-five thousand, seven hundred forty-nine".