23573813 has 8 divisors (see below), whose sum is σ = 25072320. Its totient is φ = 22101120.

The previous prime is 23573807. The next prime is 23573821. The reversal of 23573813 is 31837532.

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 23573813 - 2¹⁰ = 23572789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23573813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23573833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4553 + ... + 8238.

It is an arithmetic number, because the mean of its divisors is an integer number (3134040).

Almost surely, 2^23573813 is an apocalyptic number.

It is an amenable number.

23573813 is a deficient number, since it is larger than the sum of its proper divisors (1498507).

23573813 is a wasteful number, since it uses less digits than its factorization.

23573813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12907.

The product of its digits is 15120, while the sum is 32.

The square root of 23573813 is about 4855.2871181836. The cubic root of 23573813 is about 286.7322953820.

The spelling of 23573813 in words is "twenty-three million, five hundred seventy-three thousand, eight hundred thirteen".