13808723 has 4 divisors (see below), whose sum is σ = 13838760. Its totient is φ = 13778688.

The previous prime is 13808699. The next prime is 13808731. The reversal of 13808723 is 32780831.

13808723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13808723 - 2⁸ = 13808467 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13808723.

It is not an unprimeable number, because it can be changed into a prime (13808783) 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, 14318 + ... + 15251.

It is an arithmetic number, because the mean of its divisors is an integer number (3459690).

Almost surely, 2^13808723 is an apocalyptic number.

13808723 is a deficient number, since it is larger than the sum of its proper divisors (30037).

13808723 is an equidigital number, since it uses as much as digits as its factorization.

13808723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30036.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 13808723 is about 3716.0090150590. The cubic root of 13808723 is about 239.9115588482.

The spelling of 13808723 in words is "thirteen million, eight hundred eight thousand, seven hundred twenty-three".