12787841 has 8 divisors (see below), whose sum is σ = 14400768. Its totient is φ = 11250000.

The previous prime is 12787823. The next prime is 12787843. The reversal of 12787841 is 14878721.

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 12787841 - 2¹⁰ = 12786817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12787795 and 12787804.

It is not an unprimeable number, because it can be changed into a prime (12787843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18410 + ... + 19091.

It is an arithmetic number, because the mean of its divisors is an integer number (1800096).

Almost surely, 2^12787841 is an apocalyptic number.

12787841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12787841 is a deficient number, since it is larger than the sum of its proper divisors (1612927).

12787841 is a wasteful number, since it uses less digits than its factorization.

12787841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37543.

The product of its digits is 25088, while the sum is 38.

The square root of 12787841 is about 3576.0090883553. The cubic root of 12787841 is about 233.8473265671.

It can be divided in two parts, 1278 and 7841, that added together give a palindrome (9119).

The spelling of 12787841 in words is "twelve million, seven hundred eighty-seven thousand, eight hundred forty-one".