12867738 has 32 divisors (see below), whose sum is σ = 27888000. Its totient is φ = 3934656.

The previous prime is 12867721. The next prime is 12867761. The reversal of 12867738 is 83776821.

It is a self number, because there is not a number n which added to its sum of digits gives 12867738.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15108 + ... + 15936.

It is an arithmetic number, because the mean of its divisors is an integer number (871500).

Almost surely, 2^12867738 is an apocalyptic number.

12867738 is an abundant number, since it is smaller than the sum of its proper divisors (15020262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12867738 is a wasteful number, since it uses less digits than its factorization.

12867738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046.

The product of its digits is 112896, while the sum is 42.

The square root of 12867738 is about 3587.1629458390. The cubic root of 12867738 is about 234.3333331085. Note that the first 6 decimals are identical.

The spelling of 12867738 in words is "twelve million, eight hundred sixty-seven thousand, seven hundred thirty-eight".