12868623 has 12 divisors (see below), whose sum is σ = 18866328. Its totient is φ = 8450640.

The previous prime is 12868613. The next prime is 12868651. The reversal of 12868623 is 32686821.

12868623 is a `hidden beast` number, since 1 + 28 + 6 + 8 + 623 = 666.

It is not a de Polignac number, because 12868623 - 2⁴ = 12868607 is a prime.

It is a super-2 number, since 2×12868623² = 331202915832258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12868613) 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 in 11 ways as a sum of consecutive naturals, for example, 10068 + ... + 11273.

It is an arithmetic number, because the mean of its divisors is an integer number (1572194).

Almost surely, 2^12868623 is an apocalyptic number.

12868623 is a deficient number, since it is larger than the sum of its proper divisors (5997705).

12868623 is a wasteful number, since it uses less digits than its factorization.

12868623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21414 (or 21411 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 12868623 is about 3587.2863002554. The cubic root of 12868623 is about 234.3387052064.

The spelling of 12868623 in words is "twelve million, eight hundred sixty-eight thousand, six hundred twenty-three".