13997603 has 4 divisors (see below), whose sum is σ = 14078688. Its totient is φ = 13916520.

The previous prime is 13997569. The next prime is 13997611. The reversal of 13997603 is 30679931.

13997603 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 13997603 - 2⁶ = 13997539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13997663) 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, 40283 + ... + 40628.

It is an arithmetic number, because the mean of its divisors is an integer number (3519672).

Almost surely, 2^13997603 is an apocalyptic number.

13997603 is a deficient number, since it is larger than the sum of its proper divisors (81085).

13997603 is an equidigital number, since it uses as much as digits as its factorization.

13997603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81084.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 13997603 is about 3741.3370604638. The cubic root of 13997603 is about 241.0004706062. Note that the first 3 decimals are identical.

The spelling of 13997603 in words is "thirteen million, nine hundred ninety-seven thousand, six hundred three".