12849787 has 4 divisors (see below), whose sum is σ = 13067640. Its totient is φ = 12631936.

The previous prime is 12849763. The next prime is 12849791. The reversal of 12849787 is 78794821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78794821 = 7 ⋅11256403.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12849787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12846787) 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, 108838 + ... + 108955.

It is an arithmetic number, because the mean of its divisors is an integer number (3266910).

Almost surely, 2^12849787 is an apocalyptic number.

12849787 is a deficient number, since it is larger than the sum of its proper divisors (217853).

12849787 is an equidigital number, since it uses as much as digits as its factorization.

12849787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217852.

The product of its digits is 225792, while the sum is 46.

The square root of 12849787 is about 3584.6599559791. The cubic root of 12849787 is about 234.2243143292.

It can be divided in two parts, 128 and 49787, that multiplied together give a palindrome (6372736).

The spelling of 12849787 in words is "twelve million, eight hundred forty-nine thousand, seven hundred eighty-seven".