13670003 has 4 divisors (see below), whose sum is σ = 13680768. Its totient is φ = 13659240.

The previous prime is 13669993. The next prime is 13670009. The reversal of 13670003 is 30007631.

13670003 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13670003 - 2⁶ = 13669939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13670009) 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, 3176 + ... + 6117.

It is an arithmetic number, because the mean of its divisors is an integer number (3420192).

Almost surely, 2^13670003 is an apocalyptic number.

13670003 is a deficient number, since it is larger than the sum of its proper divisors (10765).

13670003 is an equidigital number, since it uses as much as digits as its factorization.

13670003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10764.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 13670003 is about 3697.2967151691. The cubic root of 13670003 is about 239.1054838027.

Adding to 13670003 its reverse (30007631), we get a palindrome (43677634).

The spelling of 13670003 in words is "thirteen million, six hundred seventy thousand, three".