12978014 has 8 divisors (see below), whose sum is σ = 22248048. Its totient is φ = 5562000.

The previous prime is 12977999. The next prime is 12978023. The reversal of 12978014 is 41087921.

12978014 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 463487 + ... + 463514.

It is an arithmetic number, because the mean of its divisors is an integer number (2781006).

Almost surely, 2^12978014 is an apocalyptic number.

12978014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12978014 is a deficient number, since it is larger than the sum of its proper divisors (9270034).

12978014 is an equidigital number, since it uses as much as digits as its factorization.

12978014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927010.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 12978014 is about 3602.5010756418. The cubic root of 12978014 is about 235.0008389890. Note that the first 3 decimals are identical.

The spelling of 12978014 in words is "twelve million, nine hundred seventy-eight thousand, fourteen".