12379878 has 56 divisors (see below), whose sum is σ = 31845648. Its totient is φ = 3534192.

The previous prime is 12379841. The next prime is 12379883. The reversal of 12379878 is 87897321.

It is a super-3 number, since 3×12379878³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 9600 + ... + 10812.

Almost surely, 2^12379878 is an apocalyptic number.

12379878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12379878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15922824).

12379878 is an abundant number, since it is smaller than the sum of its proper divisors (19465770).

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

12379878 is an equidigital number, since it uses as much as digits as its factorization.

12379878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1225 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 12379878 is about 3518.5050802862. The cubic root of 12379878 is about 231.3336383120. Note that the first 3 decimals are identical.

The spelling of 12379878 in words is "twelve million, three hundred seventy-nine thousand, eight hundred seventy-eight".