12868066 has 4 divisors (see below), whose sum is σ = 19302102. Its totient is φ = 6434032.

The previous prime is 12868039. The next prime is 12868103. The reversal of 12868066 is 66086821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66086821 = 389 ⋅169889.

It can be written as a sum of positive squares in only one way, i.e., 9703225 + 3164841 = 3115^2 + 1779^2 .

It is a super-3 number, since 3×12868066³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

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, 3217015 + ... + 3217018.

Almost surely, 2^12868066 is an apocalyptic number.

12868066 is a deficient number, since it is larger than the sum of its proper divisors (6434036).

12868066 is an equidigital number, since it uses as much as digits as its factorization.

12868066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6434035.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 12868066 is about 3587.2086641287. The cubic root of 12868066 is about 234.3353241521.

The spelling of 12868066 in words is "twelve million, eight hundred sixty-eight thousand, sixty-six".