12636893 has 2 divisors, whose sum is σ = 12636894. Its totient is φ = 12636892.

The previous prime is 12636857. The next prime is 12636931. The reversal of 12636893 is 39863621.

12636893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (12636931) can be obtained adding 12636893 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7739524 + 4897369 = 2782^2 + 2213^2 .

It is a cyclic number.

It is not a de Polignac number, because 12636893 - 2¹⁰ = 12635869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12636823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6318446 + 6318447.

It is an arithmetic number, because the mean of its divisors is an integer number (6318447).

Almost surely, 2^12636893 is an apocalyptic number.

It is an amenable number.

12636893 is a deficient number, since it is larger than the sum of its proper divisors (1).

12636893 is an equidigital number, since it uses as much as digits as its factorization.

12636893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 12636893 is about 3554.8407840577. The cubic root of 12636893 is about 232.9235690293.

The spelling of 12636893 in words is "twelve million, six hundred thirty-six thousand, eight hundred ninety-three".