12890587 has 8 divisors (see below), whose sum is σ = 13384800. Its totient is φ = 12399744.

The previous prime is 12890567. The next prime is 12890597. The reversal of 12890587 is 78509821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12890587 - 2¹¹ = 12888539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12890567) 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 7 ways as a sum of consecutive naturals, for example, 9114 + ... + 10432.

It is an arithmetic number, because the mean of its divisors is an integer number (1673100).

Almost surely, 2^12890587 is an apocalyptic number.

12890587 is a deficient number, since it is larger than the sum of its proper divisors (494213).

12890587 is a wasteful number, since it uses less digits than its factorization.

12890587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 12890587 is about 3590.3463621216. The cubic root of 12890587 is about 234.4719515221.

The spelling of 12890587 in words is "twelve million, eight hundred ninety thousand, five hundred eighty-seven".