13673617 has 4 divisors (see below), whose sum is σ = 13730596. Its totient is φ = 13616640.

The previous prime is 13673603. The next prime is 13673651. The reversal of 13673617 is 71637631.

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: 71637631 = 13 ⋅5510587.

It can be written as a sum of positive squares in 2 ways, for example, as 9217296 + 4456321 = 3036^2 + 2111^2 .

It is a cyclic number.

It is not a de Polignac number, because 13673617 - 2¹⁵ = 13640849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13673657) 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, 28128 + ... + 28609.

It is an arithmetic number, because the mean of its divisors is an integer number (3432649).

Almost surely, 2^13673617 is an apocalyptic number.

It is an amenable number.

13673617 is a deficient number, since it is larger than the sum of its proper divisors (56979).

13673617 is an equidigital number, since it uses as much as digits as its factorization.

13673617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56978.

The product of its digits is 15876, while the sum is 34.

The square root of 13673617 is about 3697.7854183281. The cubic root of 13673617 is about 239.1265530758.

The spelling of 13673617 in words is "thirteen million, six hundred seventy-three thousand, six hundred seventeen".