13506417 has 6 divisors (see below), whose sum is σ = 19509282. Its totient is φ = 9004272.

The previous prime is 13506413. The next prime is 13506439. The reversal of 13506417 is 71460531.

13506417 is a `hidden beast` number, since 13 + 5 + 0 + 641 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10653696 + 2852721 = 3264^2 + 1689^2 .

It is not a de Polignac number, because 13506417 - 2² = 13506413 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13506413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 750348 + ... + 750365.

It is an arithmetic number, because the mean of its divisors is an integer number (3251547).

Almost surely, 2^13506417 is an apocalyptic number.

It is an amenable number.

13506417 is a deficient number, since it is larger than the sum of its proper divisors (6002865).

13506417 is a wasteful number, since it uses less digits than its factorization.

13506417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500719 (or 1500716 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 13506417 is about 3675.1077535223. The cubic root of 13506417 is about 238.1478790508.

Adding to 13506417 its reverse (71460531), we get a palindrome (84966948).

The spelling of 13506417 in words is "thirteen million, five hundred six thousand, four hundred seventeen".