12998863 has 8 divisors (see below), whose sum is σ = 13865040. Its totient is φ = 12144000.

The previous prime is 12998861. The next prime is 12998903. The reversal of 12998863 is 36889921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12998863 - 2¹ = 12998861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12998861) 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 7 ways as a sum of consecutive naturals, for example, 388 + ... + 5113.

It is an arithmetic number, because the mean of its divisors is an integer number (1733130).

Almost surely, 2^12998863 is an apocalyptic number.

12998863 is a deficient number, since it is larger than the sum of its proper divisors (866177).

12998863 is a wasteful number, since it uses less digits than its factorization.

12998863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5657.

The product of its digits is 186624, while the sum is 46.

The square root of 12998863 is about 3605.3935984855. The cubic root of 12998863 is about 235.1266135272.

It can be divided in two parts, 12998 and 863, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 12998863 in words is "twelve million, nine hundred ninety-eight thousand, eight hundred sixty-three".