23819853 has 4 divisors (see below), whose sum is σ = 31759808. Its totient is φ = 15879900.

The previous prime is 23819833. The next prime is 23819857. The reversal of 23819853 is 35891832.

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 not a de Polignac number, because 23819853 - 2¹⁰ = 23818829 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 (23819857) 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, 3969973 + ... + 3969978.

It is an arithmetic number, because the mean of its divisors is an integer number (7939952).

Almost surely, 2^23819853 is an apocalyptic number.

It is an amenable number.

23819853 is a deficient number, since it is larger than the sum of its proper divisors (7939955).

23819853 is an equidigital number, since it uses as much as digits as its factorization.

23819853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7939954.

The product of its digits is 51840, while the sum is 39.

The square root of 23819853 is about 4880.5586770369. The cubic root of 23819853 is about 287.7263870320.

The spelling of 23819853 in words is "twenty-three million, eight hundred nineteen thousand, eight hundred fifty-three".