12663798 has 32 divisors (see below), whose sum is σ = 29103360. Its totient is φ = 3598560.

The previous prime is 12663787. The next prime is 12663803. The reversal of 12663798 is 89736621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

12663798 is a modest number, since divided by 3798 gives 1266 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8148 + ... + 9576.

It is an arithmetic number, because the mean of its divisors is an integer number (909480).

Almost surely, 2^12663798 is an apocalyptic number.

12663798 is an abundant number, since it is smaller than the sum of its proper divisors (16439562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12663798 is a wasteful number, since it uses less digits than its factorization.

12663798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652.

The product of its digits is 108864, while the sum is 42.

The square root of 12663798 is about 3558.6230483152. The cubic root of 12663798 is about 233.0887564257.

The spelling of 12663798 in words is "twelve million, six hundred sixty-three thousand, seven hundred ninety-eight".