12840827 has 8 divisors (see below), whose sum is σ = 13584960. Its totient is φ = 12103560.

The previous prime is 12840811. The next prime is 12840833. The reversal of 12840827 is 72804821.

12840827 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12840827 - 2⁴ = 12840811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12840793 and 12840802.

It is not an unprimeable number, because it can be changed into a prime (12840427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2408 + ... + 5610.

It is an arithmetic number, because the mean of its divisors is an integer number (1698120).

Almost surely, 2^12840827 is an apocalyptic number.

12840827 is a deficient number, since it is larger than the sum of its proper divisors (744133).

12840827 is a wasteful number, since it uses less digits than its factorization.

12840827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 12840827 is about 3583.4099681728. The cubic root of 12840827 is about 234.1698610834.

The spelling of 12840827 in words is "twelve million, eight hundred forty thousand, eight hundred twenty-seven".