13817913 has 8 divisors (see below), whose sum is σ = 18462528. Its totient is φ = 9192624.

The previous prime is 13817897. The next prime is 13817929. The reversal of 13817913 is 31971831.

13817913 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13817897) and next prime (13817929).

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

It is not a de Polignac number, because 13817913 - 2⁴ = 13817897 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13817933) 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, 3070 + ... + 6087.

It is an arithmetic number, because the mean of its divisors is an integer number (2307816).

Almost surely, 2^13817913 is an apocalyptic number.

It is an amenable number.

13817913 is a deficient number, since it is larger than the sum of its proper divisors (4644615).

13817913 is an equidigital number, since it uses as much as digits as its factorization.

13817913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9663.

The product of its digits is 4536, while the sum is 33.

The square root of 13817913 is about 3717.2453510631. The cubic root of 13817913 is about 239.9647691341.

The spelling of 13817913 in words is "thirteen million, eight hundred seventeen thousand, nine hundred thirteen".