13072617 has 8 divisors (see below), whose sum is σ = 19366880. Its totient is φ = 8715060.

The previous prime is 13072603. The next prime is 13072637. The reversal of 13072617 is 71627031.

It is not a de Polignac number, because 13072617 - 2⁴ = 13072601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 484171 = 13072617 / (1 + 3 + 0 + 7 + 2 + 6 + 1 + 7).

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13072637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242059 + ... + 242112.

It is an arithmetic number, because the mean of its divisors is an integer number (2420860).

Almost surely, 2^13072617 is an apocalyptic number.

It is an amenable number.

13072617 is a deficient number, since it is larger than the sum of its proper divisors (6294263).

13072617 is an equidigital number, since it uses as much as digits as its factorization.

13072617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484180 (or 484174 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 13072617 is about 3615.6074178483. The cubic root of 13072617 is about 235.5704685866.

Adding to 13072617 its reverse (71627031), we get a palindrome (84699648).

It can be divided in two parts, 13072 and 617, that added together give a square (13689 = 117²).

The spelling of 13072617 in words is "thirteen million, seventy-two thousand, six hundred seventeen".