23020853 has 4 divisors (see below), whose sum is σ = 23060268. Its totient is φ = 22981440.

The previous prime is 23020849. The next prime is 23020859. The reversal of 23020853 is 35802032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14122564 + 8898289 = 3758^2 + 2983^2 .

It is a cyclic number.

It is not a de Polignac number, because 23020853 - 2² = 23020849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020859) 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, 18818 + ... + 20003.

It is an arithmetic number, because the mean of its divisors is an integer number (5765067).

Almost surely, 2^23020853 is an apocalyptic number.

It is an amenable number.

23020853 is a deficient number, since it is larger than the sum of its proper divisors (39415).

23020853 is an equidigital number, since it uses as much as digits as its factorization.

23020853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39414.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 23020853 is about 4798.0051062916. The cubic root of 23020853 is about 284.4726186297.

Adding to 23020853 its reverse (35802032), we get a palindrome (58822885).

The spelling of 23020853 in words is "twenty-three million, twenty thousand, eight hundred fifty-three".