13604001 has 4 divisors (see below), whose sum is σ = 18138672. Its totient is φ = 9069332.

The previous prime is 13603979. The next prime is 13604011. The reversal of 13604001 is 10040631.

13604001 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 a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10040631 = 3 ⋅3346877.

It is a cyclic number.

It is not a de Polignac number, because 13604001 - 2⁵ = 13603969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13604011) 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, 2267331 + ... + 2267336.

It is an arithmetic number, because the mean of its divisors is an integer number (4534668).

Almost surely, 2^13604001 is an apocalyptic number.

It is an amenable number.

13604001 is a deficient number, since it is larger than the sum of its proper divisors (4534671).

13604001 is an equidigital number, since it uses as much as digits as its factorization.

13604001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4534670.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13604001 is about 3688.3602047522. The cubic root of 13604001 is about 238.7200435720.

Adding to 13604001 its reverse (10040631), we get a palindrome (23644632).

The spelling of 13604001 in words is "thirteen million, six hundred four thousand, one".