13260447 has 6 divisors (see below), whose sum is σ = 19153992. Its totient is φ = 8840292.

The previous prime is 13260431. The next prime is 13260449. The reversal of 13260447 is 74406231.

13260447 is a `hidden beast` number, since 13 + 2 + 604 + 47 = 666.

It is not a de Polignac number, because 13260447 - 2⁴ = 13260431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13260447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13260449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 736683 + ... + 736700.

It is an arithmetic number, because the mean of its divisors is an integer number (3192332).

Almost surely, 2^13260447 is an apocalyptic number.

13260447 is a deficient number, since it is larger than the sum of its proper divisors (5893545).

13260447 is a wasteful number, since it uses less digits than its factorization.

13260447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473389 (or 1473386 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 13260447 is about 3641.4896677047. The cubic root of 13260447 is about 236.6933490602.

Adding to 13260447 its reverse (74406231), we get a palindrome (87666678).

It can be divided in two parts, 132604 and 47, that added together give a cube (132651 = 51³).

The spelling of 13260447 in words is "thirteen million, two hundred sixty thousand, four hundred forty-seven".