13859623 has 2 divisors, whose sum is σ = 13859624. Its totient is φ = 13859622.

The previous prime is 13859611. The next prime is 13859647. The reversal of 13859623 is 32695831.

13859623 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13859623 - 2⁵ = 13859591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13859653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6929811 + 6929812.

It is an arithmetic number, because the mean of its divisors is an integer number (6929812).

Almost surely, 2^13859623 is an apocalyptic number.

13859623 is a deficient number, since it is larger than the sum of its proper divisors (1).

13859623 is an equidigital number, since it uses as much as digits as its factorization.

13859623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 13859623 is about 3722.8514609100. The cubic root of 13859623 is about 240.2059747964.

The spelling of 13859623 in words is "thirteen million, eight hundred fifty-nine thousand, six hundred twenty-three".