13730289 has 4 divisors (see below), whose sum is σ = 18307056. Its totient is φ = 9153524.

The previous prime is 13730263. The next prime is 13730317. The reversal of 13730289 is 98203731.

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.

It is a cyclic number.

It is not a de Polignac number, because 13730289 - 2⁷ = 13730161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13730089) 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, 2288379 + ... + 2288384.

It is an arithmetic number, because the mean of its divisors is an integer number (4576764).

Almost surely, 2^13730289 is an apocalyptic number.

It is an amenable number.

13730289 is a deficient number, since it is larger than the sum of its proper divisors (4576767).

13730289 is an equidigital number, since it uses as much as digits as its factorization.

13730289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576766.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 13730289 is about 3705.4404596485. The cubic root of 13730289 is about 239.4564609235.

The spelling of 13730289 in words is "thirteen million, seven hundred thirty thousand, two hundred eighty-nine".