12378878 has 8 divisors (see below), whose sum is σ = 18622872. Its totient is φ = 6171256.

The previous prime is 12378859. The next prime is 12378917. The reversal of 12378878 is 87887321.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8225 + ... + 9612.

It is an arithmetic number, because the mean of its divisors is an integer number (2327859).

Almost surely, 2^12378878 is an apocalyptic number.

12378878 is a deficient number, since it is larger than the sum of its proper divisors (6243994).

12378878 is a wasteful number, since it uses less digits than its factorization.

12378878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18186.

The product of its digits is 150528, while the sum is 44.

The square root of 12378878 is about 3518.3629716105. The cubic root of 12378878 is about 231.3274093904.

The spelling of 12378878 in words is "twelve million, three hundred seventy-eight thousand, eight hundred seventy-eight".