12870842 has 8 divisors (see below), whose sum is σ = 19353600. Its totient is φ = 6419644.

The previous prime is 12870841. The next prime is 12870863. The reversal of 12870842 is 24807821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12870799 and 12870808.

It is not an unprimeable number, because it can be changed into a prime (12870841) 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, 6842 + ... + 8517.

It is an arithmetic number, because the mean of its divisors is an integer number (2419200).

Almost surely, 2^12870842 is an apocalyptic number.

12870842 is a deficient number, since it is larger than the sum of its proper divisors (6482758).

12870842 is a wasteful number, since it uses less digits than its factorization.

12870842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15780.

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

The square root of 12870842 is about 3587.5955736398. The cubic root of 12870842 is about 234.3521738244.

The spelling of 12870842 in words is "twelve million, eight hundred seventy thousand, eight hundred forty-two".