23857573 has 4 divisors (see below), whose sum is σ = 23874688. Its totient is φ = 23840460.

The previous prime is 23857549. The next prime is 23857609. The reversal of 23857573 is 37575832.

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 not a de Polignac number, because 23857573 - 2⁵ = 23857541 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 (23857523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6261 + ... + 9322.

It is an arithmetic number, because the mean of its divisors is an integer number (5968672).

Almost surely, 2^23857573 is an apocalyptic number.

It is an amenable number.

23857573 is a deficient number, since it is larger than the sum of its proper divisors (17115).

23857573 is a wasteful number, since it uses less digits than its factorization.

23857573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17114.

The product of its digits is 176400, while the sum is 40.

The square root of 23857573 is about 4884.4214601117. The cubic root of 23857573 is about 287.8781835966.

The spelling of 23857573 in words is "twenty-three million, eight hundred fifty-seven thousand, five hundred seventy-three".