23813839 has 8 divisors (see below), whose sum is σ = 27560960. Its totient is φ = 20153016.

The previous prime is 23813837. The next prime is 23813857. The reversal of 23813839 is 93831832.

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 23813839 - 2¹ = 23813837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23813798 and 23813807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23813831) 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 7 ways as a sum of consecutive naturals, for example, 20979 + ... + 22084.

It is an arithmetic number, because the mean of its divisors is an integer number (3445120).

Almost surely, 2^23813839 is an apocalyptic number.

23813839 is a deficient number, since it is larger than the sum of its proper divisors (3747121).

23813839 is an equidigital number, since it uses as much as digits as its factorization.

23813839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43149.

The product of its digits is 31104, while the sum is 37.

The square root of 23813839 is about 4879.9425201533. The cubic root of 23813839 is about 287.7021700879.

The spelling of 23813839 in words is "twenty-three million, eight hundred thirteen thousand, eight hundred thirty-nine".