23725237 has 4 divisors (see below), whose sum is σ = 23813056. Its totient is φ = 23637420.

The previous prime is 23725211. The next prime is 23725241. The reversal of 23725237 is 73252732.

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 23725237 - 2¹⁹ = 23200949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23725199 and 23725208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23725837) 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, 43503 + ... + 44044.

It is an arithmetic number, because the mean of its divisors is an integer number (5953264).

Almost surely, 2^23725237 is an apocalyptic number.

It is an amenable number.

23725237 is a deficient number, since it is larger than the sum of its proper divisors (87819).

23725237 is an equidigital number, since it uses as much as digits as its factorization.

23725237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87818.

The product of its digits is 17640, while the sum is 31.

The square root of 23725237 is about 4870.8558796171. The cubic root of 23725237 is about 287.3449174951.

Adding to 23725237 its reverse (73252732), we get a palindrome (96977969).

The spelling of 23725237 in words is "twenty-three million, seven hundred twenty-five thousand, two hundred thirty-seven".