12739968 has 48 divisors (see below), whose sum is σ = 36663900. Its totient is φ = 4246272.

The previous prime is 12739943. The next prime is 12739973. The reversal of 12739968 is 86993721.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4378 + ... + 6681.

Almost surely, 2^12739968 is an apocalyptic number.

12739968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12739968 is an abundant number, since it is smaller than the sum of its proper divisors (23923932).

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

12739968 is a wasteful number, since it uses less digits than its factorization.

12739968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11079 (or 11064 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 12739968 is about 3569.3091768576. The cubic root of 12739968 is about 233.5551487044. Note that the first 3 decimals are identical.

The spelling of 12739968 in words is "twelve million, seven hundred thirty-nine thousand, nine hundred sixty-eight".