23686713 has 12 divisors (see below), whose sum is σ = 34263060. Its totient is φ = 15768576.

The previous prime is 23686709. The next prime is 23686717. The reversal of 23686713 is 31768632.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23686709) and next prime (23686717).

It can be written as a sum of positive squares in 2 ways, for example, as 3732624 + 19954089 = 1932^2 + 4467^2 .

It is not a de Polignac number, because 23686713 - 2² = 23686709 is a prime.

It is a super-2 number, since 2×23686713² = 1122120745488738, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23686717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6945 + ... + 9777.

It is an arithmetic number, because the mean of its divisors is an integer number (2855255).

Almost surely, 2^23686713 is an apocalyptic number.

It is an amenable number.

23686713 is a deficient number, since it is larger than the sum of its proper divisors (10576347).

23686713 is a wasteful number, since it uses less digits than its factorization.

23686713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768 (or 3765 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 23686713 is about 4866.8997318622. The cubic root of 23686713 is about 287.1893072125.

The spelling of 23686713 in words is "twenty-three million, six hundred eighty-six thousand, seven hundred thirteen".