13774389 has 4 divisors (see below), whose sum is σ = 18365856. Its totient is φ = 9182924.

The previous prime is 13774381. The next prime is 13774393. The reversal of 13774389 is 98347731.

13774389 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.

It is a cyclic number.

It is not a de Polignac number, because 13774389 - 2³ = 13774381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13774389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13774381) 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, 2295729 + ... + 2295734.

It is an arithmetic number, because the mean of its divisors is an integer number (4591464).

Almost surely, 2^13774389 is an apocalyptic number.

It is an amenable number.

13774389 is a deficient number, since it is larger than the sum of its proper divisors (4591467).

13774389 is an equidigital number, since it uses as much as digits as its factorization.

13774389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4591466.

The product of its digits is 127008, while the sum is 42.

The square root of 13774389 is about 3711.3863986387. The cubic root of 13774389 is about 239.7125551741.

The spelling of 13774389 in words is "thirteen million, seven hundred seventy-four thousand, three hundred eighty-nine".