23813849 has 4 divisors (see below), whose sum is σ = 23828736. Its totient is φ = 23798964.

The previous prime is 23813837. The next prime is 23813857. The reversal of 23813849 is 94831832.

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-23813849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23813869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4709 + ... + 8354.

It is an arithmetic number, because the mean of its divisors is an integer number (5957184).

Almost surely, 2^23813849 is an apocalyptic number.

It is an amenable number.

23813849 is a deficient number, since it is larger than the sum of its proper divisors (14887).

23813849 is a wasteful number, since it uses less digits than its factorization.

23813849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14886.

The product of its digits is 41472, while the sum is 38.

The square root of 23813849 is about 4879.9435447554. The cubic root of 23813849 is about 287.7022103589.

The spelling of 23813849 in words is "twenty-three million, eight hundred thirteen thousand, eight hundred forty-nine".