12287837 has 2 divisors, whose sum is σ = 12287838. Its totient is φ = 12287836.

The previous prime is 12287833. The next prime is 12287861. The reversal of 12287837 is 73878221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7873636 + 4414201 = 2806^2 + 2101^2 .

It is an emirp because it is prime and its reverse (73878221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12287837 - 2² = 12287833 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12287837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12287831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6143918 + 6143919.

It is an arithmetic number, because the mean of its divisors is an integer number (6143919).

Almost surely, 2^12287837 is an apocalyptic number.

It is an amenable number.

12287837 is a deficient number, since it is larger than the sum of its proper divisors (1).

12287837 is an equidigital number, since it uses as much as digits as its factorization.

12287837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 38.

The square root of 12287837 is about 3505.4011182745. The cubic root of 12287837 is about 230.7589109032.

The spelling of 12287837 in words is "twelve million, two hundred eighty-seven thousand, eight hundred thirty-seven".