12983956 has 6 divisors (see below), whose sum is σ = 22721930. Its totient is φ = 6491976.

The previous prime is 12983941. The next prime is 12983959. The reversal of 12983956 is 65938921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10995856 + 1988100 = 3316^2 + 1410^2 .

It is a super-2 number, since 2×12983956² = 337166226819872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12983959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1622991 + ... + 1622998.

Almost surely, 2^12983956 is an apocalyptic number.

It is an amenable number.

12983956 is a deficient number, since it is larger than the sum of its proper divisors (9737974).

12983956 is a wasteful number, since it uses less digits than its factorization.

12983956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245993 (or 3245991 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 12983956 is about 3603.3256860850. The cubic root of 12983956 is about 235.0366986598.

The spelling of 12983956 in words is "twelve million, nine hundred eighty-three thousand, nine hundred fifty-six".