23240713 has 4 divisors (see below), whose sum is σ = 23251860. Its totient is φ = 23229568.

The previous prime is 23240677. The next prime is 23240729. The reversal of 23240713 is 31704232.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9903609 + 13337104 = 3147^2 + 3652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23240713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23240753) 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, 1408 + ... + 6961.

It is an arithmetic number, because the mean of its divisors is an integer number (5812965).

Almost surely, 2^23240713 is an apocalyptic number.

It is an amenable number.

23240713 is a deficient number, since it is larger than the sum of its proper divisors (11147).

23240713 is an equidigital number, since it uses as much as digits as its factorization.

23240713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11146.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 23240713 is about 4820.8622672713. The cubic root of 23240713 is about 285.3753666871.

Adding to 23240713 its reverse (31704232), we get a palindrome (54944945).

The spelling of 23240713 in words is "twenty-three million, two hundred forty thousand, seven hundred thirteen".