12868936 has 8 divisors (see below), whose sum is σ = 24129270. Its totient is φ = 6434464.

The previous prime is 12868931. The next prime is 12868939. The reversal of 12868936 is 63986821.

It can be written as a sum of positive squares in only one way, i.e., 7806436 + 5062500 = 2794^2 + 2250^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 12868892 and 12868901.

It is not an unprimeable number, because it can be changed into a prime (12868931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804301 + ... + 804316.

Almost surely, 2^12868936 is an apocalyptic number.

It is an amenable number.

12868936 is a deficient number, since it is larger than the sum of its proper divisors (11260334).

12868936 is a wasteful number, since it uses less digits than its factorization.

12868936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608623 (or 1608619 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 12868936 is about 3587.3299262822. The cubic root of 12868936 is about 234.3406051098.

The spelling of 12868936 in words is "twelve million, eight hundred sixty-eight thousand, nine hundred thirty-six".