12877843 has 4 divisors (see below), whose sum is σ = 14048568. Its totient is φ = 11707120.

The previous prime is 12877831. The next prime is 12877847. The reversal of 12877843 is 34877821.

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 12877843 - 2⁹ = 12877331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12877796 and 12877805.

It is not an unprimeable number, because it can be changed into a prime (12877847) 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 3 ways as a sum of consecutive naturals, for example, 585346 + ... + 585367.

It is an arithmetic number, because the mean of its divisors is an integer number (3512142).

Almost surely, 2^12877843 is an apocalyptic number.

12877843 is a deficient number, since it is larger than the sum of its proper divisors (1170725).

12877843 is a wasteful number, since it uses less digits than its factorization.

12877843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170724.

The product of its digits is 75264, while the sum is 40.

The square root of 12877843 is about 3588.5711641265. The cubic root of 12877843 is about 234.3946575038.

It can be divided in two parts, 128778 and 43, that added together give a palindrome (128821).

The spelling of 12877843 in words is "twelve million, eight hundred seventy-seven thousand, eight hundred forty-three".