12743867 has 4 divisors (see below), whose sum is σ = 13040280. Its totient is φ = 12447456.

The previous prime is 12743837. The next prime is 12743879. The reversal of 12743867 is 76834721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12743867 - 2⁶ = 12743803 is a prime.

It is a super-2 number, since 2×12743867² = 324812292227378, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12743867.

It is not an unprimeable number, because it can be changed into a prime (12743827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148142 + ... + 148227.

It is an arithmetic number, because the mean of its divisors is an integer number (3260070).

Almost surely, 2^12743867 is an apocalyptic number.

12743867 is a deficient number, since it is larger than the sum of its proper divisors (296413).

12743867 is an equidigital number, since it uses as much as digits as its factorization.

12743867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296412.

The product of its digits is 56448, while the sum is 38.

The square root of 12743867 is about 3569.8553191971. The cubic root of 12743867 is about 233.5789723813.

The spelling of 12743867 in words is "twelve million, seven hundred forty-three thousand, eight hundred sixty-seven".