18023713 has 8 divisors (see below), whose sum is σ = 18314240. Its totient is φ = 17735760.

The previous prime is 18023693. The next prime is 18023729. The reversal of 18023713 is 31732081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18023713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18023113) 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, 17143 + ... + 18163.

It is an arithmetic number, because the mean of its divisors is an integer number (2289280).

Almost surely, 2^18023713 is an apocalyptic number.

It is an amenable number.

18023713 is a deficient number, since it is larger than the sum of its proper divisors (290527).

18023713 is a wasteful number, since it uses less digits than its factorization.

18023713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 18023713 is about 4245.4343711804. The cubic root of 18023713 is about 262.1891734406.

Adding to 18023713 its reverse (31732081), we get a palindrome (49755794).

The spelling of 18023713 in words is "eighteen million, twenty-three thousand, seven hundred thirteen".