12839678 has 8 divisors (see below), whose sum is σ = 19523568. Its totient is φ = 6331824.

The previous prime is 12839677. The next prime is 12839689. The reversal of 12839678 is 87693821.

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

It is a super-2 number, since 2×12839678² = 329714662287368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12839677) 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, 43826 + ... + 44117.

It is an arithmetic number, because the mean of its divisors is an integer number (2440446).

Almost surely, 2^12839678 is an apocalyptic number.

12839678 is a deficient number, since it is larger than the sum of its proper divisors (6683890).

12839678 is an equidigital number, since it uses as much as digits as its factorization.

12839678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88018.

The product of its digits is 145152, while the sum is 44.

The square root of 12839678 is about 3583.2496424335. The cubic root of 12839678 is about 234.1628763516.

The spelling of 12839678 in words is "twelve million, eight hundred thirty-nine thousand, six hundred seventy-eight".