13449685 has 8 divisors (see below), whose sum is σ = 16576056. Its totient is φ = 10468800.

The previous prime is 13449677. The next prime is 13449697. The reversal of 13449685 is 58694431.

It can be written as a sum of positive squares in 4 ways, for example, as 3771364 + 9678321 = 1942^2 + 3111^2 .

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

It is not a de Polignac number, because 13449685 - 2³ = 13449677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36166 + ... + 36535.

It is an arithmetic number, because the mean of its divisors is an integer number (2072007).

Almost surely, 2^13449685 is an apocalyptic number.

It is an amenable number.

13449685 is a deficient number, since it is larger than the sum of its proper divisors (3126371).

13449685 is an equidigital number, since it uses as much as digits as its factorization.

13449685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72743.

The product of its digits is 103680, while the sum is 40.

The square root of 13449685 is about 3667.3812182537. The cubic root of 13449685 is about 237.8139744021.

The spelling of 13449685 in words is "thirteen million, four hundred forty-nine thousand, six hundred eighty-five".