12106878 has 64 divisors (see below), whose sum is σ = 29417472. Its totient is φ = 3247200.

The previous prime is 12106877. The next prime is 12106903. The reversal of 12106878 is 87860121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12106877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80103 + ... + 80253.

It is an arithmetic number, because the mean of its divisors is an integer number (459648).

Almost surely, 2^12106878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12106878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14708736).

12106878 is an abundant number, since it is smaller than the sum of its proper divisors (17310594).

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

12106878 is a wasteful number, since it uses less digits than its factorization.

12106878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 12106878 is about 3479.4939287201. The cubic root of 12106878 is about 229.6205337008.

Adding to 12106878 its reverse (87860121), we get a palindrome (99966999).

The spelling of 12106878 in words is "twelve million, one hundred six thousand, eight hundred seventy-eight".