13676649 has 16 divisors (see below), whose sum is σ = 21046272. Its totient is φ = 7738128.

The previous prime is 13676647. The next prime is 13676669. The reversal of 13676649 is 94667631.

It is not a de Polignac number, because 13676649 - 2¹ = 13676647 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13676649.

It is not an unprimeable number, because it can be changed into a prime (13676647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 999 + ... + 5324.

It is an arithmetic number, because the mean of its divisors is an integer number (1315392).

Almost surely, 2^13676649 is an apocalyptic number.

It is an amenable number.

13676649 is a deficient number, since it is larger than the sum of its proper divisors (7369623).

13676649 is a wasteful number, since it uses less digits than its factorization.

13676649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6436.

The product of its digits is 163296, while the sum is 42.

The square root of 13676649 is about 3698.1953707180. The cubic root of 13676649 is about 239.1442264811.

The spelling of 13676649 in words is "thirteen million, six hundred seventy-six thousand, six hundred forty-nine".