12800587 has 4 divisors (see below), whose sum is σ = 12828816. Its totient is φ = 12772360.

The previous prime is 12800573. The next prime is 12800597. The reversal of 12800587 is 78500821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12800587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12800537) 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 3 ways as a sum of consecutive naturals, for example, 13423 + ... + 14344.

It is an arithmetic number, because the mean of its divisors is an integer number (3207204).

Almost surely, 2^12800587 is an apocalyptic number.

12800587 is a deficient number, since it is larger than the sum of its proper divisors (28229).

12800587 is an equidigital number, since it uses as much as digits as its factorization.

12800587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28228.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 12800587 is about 3577.7907988031. The cubic root of 12800587 is about 233.9249948324.

The spelling of 12800587 in words is "twelve million, eight hundred thousand, five hundred eighty-seven".