12257678 has 8 divisors (see below), whose sum is σ = 18401472. Its totient is φ = 6123856.

The previous prime is 12257677. The next prime is 12257711. The reversal of 12257678 is 87675221.

12257678 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 Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12257677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3026 + ... + 5802.

It is an arithmetic number, because the mean of its divisors is an integer number (2300184).

Almost surely, 2^12257678 is an apocalyptic number.

12257678 is a deficient number, since it is larger than the sum of its proper divisors (6143794).

12257678 is a wasteful number, since it uses less digits than its factorization.

12257678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4986.

The product of its digits is 47040, while the sum is 38.

The square root of 12257678 is about 3501.0966853259. The cubic root of 12257678 is about 230.5699663535.

The spelling of 12257678 in words is "twelve million, two hundred fifty-seven thousand, six hundred seventy-eight".