13676645 has 4 divisors (see below), whose sum is σ = 16411980. Its totient is φ = 10941312.

The previous prime is 13676629. The next prime is 13676647. The reversal of 13676645 is 54667631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54667631 = 17 ⋅3215743.

It can be written as a sum of positive squares in 2 ways, for example, as 4592449 + 9084196 = 2143^2 + 3014^2 .

It is a cyclic number.

It is not a de Polignac number, because 13676645 - 2⁴ = 13676629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13676599 and 13676608.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1367660 + ... + 1367669.

It is an arithmetic number, because the mean of its divisors is an integer number (4102995).

Almost surely, 2^13676645 is an apocalyptic number.

It is an amenable number.

13676645 is a deficient number, since it is larger than the sum of its proper divisors (2735335).

13676645 is an equidigital number, since it uses as much as digits as its factorization.

13676645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735334.

The product of its digits is 90720, while the sum is 38.

The square root of 13676645 is about 3698.1948299136. The cubic root of 13676645 is about 239.1442031670.

The spelling of 13676645 in words is "thirteen million, six hundred seventy-six thousand, six hundred forty-five".