13731789 has 8 divisors (see below), whose sum is σ = 18430912. Its totient is φ = 9093600.

The previous prime is 13731779. The next prime is 13731793. The reversal of 13731789 is 98713731.

It is a happy number.

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

It is not a de Polignac number, because 13731789 - 2¹¹ = 13729741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13731709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14704 + ... + 15609.

It is an arithmetic number, because the mean of its divisors is an integer number (2303864).

Almost surely, 2^13731789 is an apocalyptic number.

It is an amenable number.

13731789 is a deficient number, since it is larger than the sum of its proper divisors (4699123).

13731789 is a wasteful number, since it uses less digits than its factorization.

13731789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30467.

The product of its digits is 31752, while the sum is 39.

The square root of 13731789 is about 3705.6428592081. The cubic root of 13731789 is about 239.4651806140.

The spelling of 13731789 in words is "thirteen million, seven hundred thirty-one thousand, seven hundred eighty-nine".