12347799 has 4 divisors (see below), whose sum is σ = 16463736. Its totient is φ = 8231864.

The previous prime is 12347789. The next prime is 12347801. The reversal of 12347799 is 99774321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99774321 = 3 ⋅33258107.

It is a cyclic number.

It is not a de Polignac number, because 12347799 - 2¹² = 12343703 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 12347799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12347749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2057964 + ... + 2057969.

It is an arithmetic number, because the mean of its divisors is an integer number (4115934).

Almost surely, 2^12347799 is an apocalyptic number.

12347799 is a deficient number, since it is larger than the sum of its proper divisors (4115937).

12347799 is an equidigital number, since it uses as much as digits as its factorization.

12347799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115936.

The product of its digits is 95256, while the sum is 42.

The square root of 12347799 is about 3513.9435112136. The cubic root of 12347799 is about 231.1336532825.

The spelling of 12347799 in words is "twelve million, three hundred forty-seven thousand, seven hundred ninety-nine".