12739896 has 96 divisors (see below), whose sum is σ = 38430000. Its totient is φ = 3908736.

The previous prime is 12739879. The next prime is 12739897. The reversal of 12739896 is 69893721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12739897) 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, 36330 + ... + 36678.

Almost surely, 2^12739896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12739896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19215000).

12739896 is an abundant number, since it is smaller than the sum of its proper divisors (25690104).

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

12739896 is a wasteful number, since it uses less digits than its factorization.

12739896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 367 counting only the distinct ones).

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

The square root of 12739896 is about 3569.2990908580. The cubic root of 12739896 is about 233.5547087242.

The spelling of 12739896 in words is "twelve million, seven hundred thirty-nine thousand, eight hundred ninety-six".