13724587 has 4 divisors (see below), whose sum is σ = 13860576. Its totient is φ = 13588600.

The previous prime is 13724549. The next prime is 13724597. The reversal of 13724587 is 78542731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78542731 = 1889 ⋅41579.

It is a cyclic number.

It is not a de Polignac number, because 13724587 - 2¹⁵ = 13691819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13724507) 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, 67843 + ... + 68044.

It is an arithmetic number, because the mean of its divisors is an integer number (3465144).

Almost surely, 2^13724587 is an apocalyptic number.

13724587 is a deficient number, since it is larger than the sum of its proper divisors (135989).

13724587 is a wasteful number, since it uses less digits than its factorization.

13724587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135988.

The product of its digits is 47040, while the sum is 37.

The square root of 13724587 is about 3704.6709705452. The cubic root of 13724587 is about 239.4233086766.

The spelling of 13724587 in words is "thirteen million, seven hundred twenty-four thousand, five hundred eighty-seven".