13784489 has 8 divisors (see below), whose sum is σ = 14214528. Its totient is φ = 13360240.

The previous prime is 13784479. The next prime is 13784497. The reversal of 13784489 is 98448731.

13784489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13784489 - 2⁸ = 13784233 is a prime.

It is a super-2 number, since 2×13784489² = 380024273982242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13784479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3659 + ... + 6399.

It is an arithmetic number, because the mean of its divisors is an integer number (1776816).

Almost surely, 2^13784489 is an apocalyptic number.

It is an amenable number.

13784489 is a deficient number, since it is larger than the sum of its proper divisors (430039).

13784489 is a wasteful number, since it uses less digits than its factorization.

13784489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895.

The product of its digits is 193536, while the sum is 44.

The square root of 13784489 is about 3712.7468268117. The cubic root of 13784489 is about 239.7711301932.

The spelling of 13784489 in words is "thirteen million, seven hundred eighty-four thousand, four hundred eighty-nine".