12870867 has 16 divisors (see below), whose sum is σ = 17856000. Its totient is φ = 8236704.

The previous prime is 12870863. The next prime is 12870877. The reversal of 12870867 is 76807821.

It is not a de Polignac number, because 12870867 - 2² = 12870863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12870863) 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 15 ways as a sum of consecutive naturals, for example, 20484 + ... + 21102.

It is an arithmetic number, because the mean of its divisors is an integer number (1116000).

Almost surely, 2^12870867 is an apocalyptic number.

12870867 is a deficient number, since it is larger than the sum of its proper divisors (4985133).

12870867 is a wasteful number, since it uses less digits than its factorization.

12870867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 12870867 is about 3587.5990578659. The cubic root of 12870867 is about 234.3523255576.

The spelling of 12870867 in words is "twelve million, eight hundred seventy thousand, eight hundred sixty-seven".