12876786 has 96 divisors (see below), whose sum is σ = 33203520. Its totient is φ = 3684096.

The previous prime is 12876781. The next prime is 12876791. The reversal of 12876786 is 68767821.

It is an interprime number because it is at equal distance from previous prime (12876781) and next prime (12876791).

It is not an unprimeable number, because it can be changed into a prime (12876781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 155101 + ... + 155183.

It is an arithmetic number, because the mean of its divisors is an integer number (345870).

Almost surely, 2^12876786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12876786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16601760).

12876786 is an abundant number, since it is smaller than the sum of its proper divisors (20326734).

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

12876786 is a wasteful number, since it uses less digits than its factorization.

12876786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 118 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 12876786 is about 3588.4238880043. The cubic root of 12876786 is about 234.3882443716.

The spelling of 12876786 in words is "twelve million, eight hundred seventy-six thousand, seven hundred eighty-six".