12899837 has 2 divisors, whose sum is σ = 12899838. Its totient is φ = 12899836.

The previous prime is 12899827. The next prime is 12899851. The reversal of 12899837 is 73899821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12313081 + 586756 = 3509^2 + 766^2 .

It is an emirp because it is prime and its reverse (73899821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12899837 - 2⁶ = 12899773 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12899791 and 12899800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12899807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6449918 + 6449919.

It is an arithmetic number, because the mean of its divisors is an integer number (6449919).

Almost surely, 2^12899837 is an apocalyptic number.

It is an amenable number.

12899837 is a deficient number, since it is larger than the sum of its proper divisors (1).

12899837 is an equidigital number, since it uses as much as digits as its factorization.

12899837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 47.

The square root of 12899837 is about 3591.6343076655. The cubic root of 12899837 is about 234.5280220740.

The spelling of 12899837 in words is "twelve million, eight hundred ninety-nine thousand, eight hundred thirty-seven".