13904089 has 4 divisors (see below), whose sum is σ = 14352640. Its totient is φ = 13455540.

The previous prime is 13904083. The next prime is 13904101. The reversal of 13904089 is 98040931.

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: 98040931 = 19 ⋅5160049.

It is a cyclic number.

It is not a de Polignac number, because 13904089 - 2¹¹ = 13902041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13904083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224229 + ... + 224290.

It is an arithmetic number, because the mean of its divisors is an integer number (3588160).

Almost surely, 2^13904089 is an apocalyptic number.

It is an amenable number.

13904089 is a deficient number, since it is larger than the sum of its proper divisors (448551).

13904089 is an equidigital number, since it uses as much as digits as its factorization.

13904089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448550.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 13904089 is about 3728.8187137484. The cubic root of 13904089 is about 240.4625858295.

It can be divided in two parts, 139040 and 89, that added together give a square (139129 = 373²).

The spelling of 13904089 in words is "thirteen million, nine hundred four thousand, eighty-nine".