23567641 has 4 divisors (see below), whose sum is σ = 23596900. Its totient is φ = 23538384.

The previous prime is 23567623. The next prime is 23567651. The reversal of 23567641 is 14676532.

It is a happy number.

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 10758400 + 12809241 = 3280^2 + 3579^2 .

It is a cyclic number.

It is not a de Polignac number, because 23567641 - 2⁹ = 23567129 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 23567597 and 23567606.

It is not an unprimeable number, because it can be changed into a prime (23567611) 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, 13386 + ... + 15043.

It is an arithmetic number, because the mean of its divisors is an integer number (5899225).

Almost surely, 2^23567641 is an apocalyptic number.

It is an amenable number.

23567641 is a deficient number, since it is larger than the sum of its proper divisors (29259).

23567641 is an equidigital number, since it uses as much as digits as its factorization.

23567641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29258.

The product of its digits is 30240, while the sum is 34.

The square root of 23567641 is about 4854.6514807965. The cubic root of 23567641 is about 286.7072695027.

It can be divided in two parts, 235 and 67641, that added together give a palindrome (67876).

The spelling of 23567641 in words is "twenty-three million, five hundred sixty-seven thousand, six hundred forty-one".