13066587 has 12 divisors (see below), whose sum is σ = 19384560. Its totient is φ = 8475408.

The previous prime is 13066549. The next prime is 13066589. The reversal of 13066587 is 78566031.

13066587 is a `hidden beast` number, since 13 + 0 + 66 + 587 = 666.

It is not a de Polignac number, because 13066587 - 2¹¹ = 13064539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13066589) 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 11 ways as a sum of consecutive naturals, for example, 19287 + ... + 19952.

It is an arithmetic number, because the mean of its divisors is an integer number (1615380).

Almost surely, 2^13066587 is an apocalyptic number.

13066587 is a deficient number, since it is larger than the sum of its proper divisors (6317973).

13066587 is a wasteful number, since it uses less digits than its factorization.

13066587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39282 (or 39279 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 13066587 is about 3614.7734368837. The cubic root of 13066587 is about 235.5342425224.

The spelling of 13066587 in words is "thirteen million, sixty-six thousand, five hundred eighty-seven".