13487617 has 16 divisors (see below), whose sum is σ = 15950592. Its totient is φ = 11243520.

The previous prime is 13487611. The next prime is 13487627. The reversal of 13487617 is 71678431.

It is a cyclic number.

It is not a de Polignac number, because 13487617 - 2³ = 13487609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13487611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36568 + ... + 36934.

It is an arithmetic number, because the mean of its divisors is an integer number (996912).

Almost surely, 2^13487617 is an apocalyptic number.

It is an amenable number.

13487617 is a deficient number, since it is larger than the sum of its proper divisors (2462975).

13487617 is a wasteful number, since it uses less digits than its factorization.

13487617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its digits is 28224, while the sum is 37.

The square root of 13487617 is about 3672.5491147158. The cubic root of 13487617 is about 238.0373326085.

The spelling of 13487617 in words is "thirteen million, four hundred eighty-seven thousand, six hundred seventeen".