12616587 has 16 divisors (see below), whose sum is σ = 19127680. Its totient is φ = 8214696.

The previous prime is 12616579. The next prime is 12616609. The reversal of 12616587 is 78561621.

12616587 is a `hidden beast` number, since 12 + 61 + 6 + 587 = 666.

It is not a de Polignac number, because 12616587 - 2³ = 12616579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12616547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4273 + ... + 6594.

It is an arithmetic number, because the mean of its divisors is an integer number (1195480).

Almost surely, 2^12616587 is an apocalyptic number.

12616587 is a deficient number, since it is larger than the sum of its proper divisors (6511093).

12616587 is a wasteful number, since it uses less digits than its factorization.

12616587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10919 (or 10913 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 12616587 is about 3551.9835303672. The cubic root of 12616587 is about 232.7987418893.

It can be divided in two parts, 12616 and 587, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 12616587 in words is "twelve million, six hundred sixteen thousand, five hundred eighty-seven".