12885278 has 8 divisors (see below), whose sum is σ = 22089072. Its totient is φ = 5522256.

The previous prime is 12885263. The next prime is 12885289. The reversal of 12885278 is 87258821.

12885278 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, 460175 + ... + 460202.

It is an arithmetic number, because the mean of its divisors is an integer number (2761134).

Almost surely, 2^12885278 is an apocalyptic number.

12885278 is a deficient number, since it is larger than the sum of its proper divisors (9203794).

12885278 is an equidigital number, since it uses as much as digits as its factorization.

12885278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920386.

The product of its digits is 71680, while the sum is 41.

The square root of 12885278 is about 3589.6069422710. The cubic root of 12885278 is about 234.4397579398.

The spelling of 12885278 in words is "twelve million, eight hundred eighty-five thousand, two hundred seventy-eight".