12887099 has 4 divisors (see below), whose sum is σ = 12908736. Its totient is φ = 12865464.

The previous prime is 12887089. The next prime is 12887101. The reversal of 12887099 is 99078821.

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

It is a cyclic number.

It is not a de Polignac number, because 12887099 - 2⁸ = 12886843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12887009) 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, 9899 + ... + 11124.

It is an arithmetic number, because the mean of its divisors is an integer number (3227184).

Almost surely, 2^12887099 is an apocalyptic number.

12887099 is a deficient number, since it is larger than the sum of its proper divisors (21637).

12887099 is an equidigital number, since it uses as much as digits as its factorization.

12887099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21636.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 12887099 is about 3589.8605822511. The cubic root of 12887099 is about 234.4508014136.

The spelling of 12887099 in words is "twelve million, eight hundred eighty-seven thousand, ninety-nine".