13997845 has 8 divisors (see below), whose sum is σ = 16827264. Its totient is φ = 11178384.

The previous prime is 13997839. The next prime is 13997849. The reversal of 13997845 is 54879931.

It is a happy number.

13997845 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13997845 - 2¹¹ = 13995797 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 13997795 and 13997804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13997849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072 + ... + 5398.

It is an arithmetic number, because the mean of its divisors is an integer number (2103408).

Almost surely, 2^13997845 is an apocalyptic number.

It is an amenable number.

13997845 is a deficient number, since it is larger than the sum of its proper divisors (2829419).

13997845 is an equidigital number, since it uses as much as digits as its factorization.

13997845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979.

The product of its digits is 272160, while the sum is 46.

The square root of 13997845 is about 3741.3694017031. The cubic root of 13997845 is about 241.0018594578.

The spelling of 13997845 in words is "thirteen million, nine hundred ninety-seven thousand, eight hundred forty-five".