13839678 has 48 divisors (see below), whose sum is σ = 31084560. Its totient is φ = 4447872.

The previous prime is 13839677. The next prime is 13839691. The reversal of 13839678 is 87693831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13839677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84825 + ... + 84987.

It is an arithmetic number, because the mean of its divisors is an integer number (647595).

Almost surely, 2^13839678 is an apocalyptic number.

13839678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13839678 is an abundant number, since it is smaller than the sum of its proper divisors (17244882).

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

13839678 is a wasteful number, since it uses less digits than its factorization.

13839678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 310 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 13839678 is about 3720.1717702278. The cubic root of 13839678 is about 240.0906948892.

The spelling of 13839678 in words is "thirteen million, eight hundred thirty-nine thousand, six hundred seventy-eight".