12979956 has 48 divisors (see below), whose sum is σ = 33384960. Its totient is φ = 3892320.

The previous prime is 12979931. The next prime is 12979961. The reversal of 12979956 is 65997921.

12979956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13665 + ... + 14583.

It is an arithmetic number, because the mean of its divisors is an integer number (695520).

Almost surely, 2^12979956 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 12979956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16692480).

12979956 is an abundant number, since it is smaller than the sum of its proper divisors (20405004).

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

12979956 is a wasteful number, since it uses less digits than its factorization.

12979956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1042 counting only the distinct ones).

The product of its digits is 306180, while the sum is 48.

The square root of 12979956 is about 3602.7706005240. The cubic root of 12979956 is about 235.0125600651.

The spelling of 12979956 in words is "twelve million, nine hundred seventy-nine thousand, nine hundred fifty-six".