12298861 has 4 divisors (see below), whose sum is σ = 12307900. Its totient is φ = 12289824.

The previous prime is 12298849. The next prime is 12298877. The reversal of 12298861 is 16889221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9302500 + 2996361 = 3050^2 + 1731^2 .

It is a cyclic number.

It is not a de Polignac number, because 12298861 - 2⁵ = 12298829 is a prime.

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 12298861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12298801) 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, 2016 + ... + 5353.

It is an arithmetic number, because the mean of its divisors is an integer number (3076975).

Almost surely, 2^12298861 is an apocalyptic number.

It is an amenable number.

12298861 is a deficient number, since it is larger than the sum of its proper divisors (9039).

12298861 is an equidigital number, since it uses as much as digits as its factorization.

12298861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9038.

The product of its digits is 13824, while the sum is 37.

The square root of 12298861 is about 3506.9731963618. The cubic root of 12298861 is about 230.8278985226.

The spelling of 12298861 in words is "twelve million, two hundred ninety-eight thousand, eight hundred sixty-one".