12644831 has 2 divisors, whose sum is σ = 12644832. Its totient is φ = 12644830.

The previous prime is 12644809. The next prime is 12644857. The reversal of 12644831 is 13844621.

12644831 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12644831 - 2⁶ = 12644767 is a prime.

It is a super-2 number, since 2×12644831² = 319783502037122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12644794 and 12644803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12646831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6322415 + 6322416.

It is an arithmetic number, because the mean of its divisors is an integer number (6322416).

Almost surely, 2^12644831 is an apocalyptic number.

12644831 is a deficient number, since it is larger than the sum of its proper divisors (1).

12644831 is an equidigital number, since it uses as much as digits as its factorization.

12644831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 29.

The square root of 12644831 is about 3555.9571144771. The cubic root of 12644831 is about 232.9723299677.

The spelling of 12644831 in words is "twelve million, six hundred forty-four thousand, eight hundred thirty-one".