12398788 has 12 divisors (see below), whose sum is σ = 22159872. Its totient is φ = 6067400.

The previous prime is 12398779. The next prime is 12398803. The reversal of 12398788 is 88789321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32788 + ... + 33163.

It is an arithmetic number, because the mean of its divisors is an integer number (1846656).

Almost surely, 2^12398788 is an apocalyptic number.

It is an amenable number.

12398788 is a deficient number, since it is larger than the sum of its proper divisors (9761084).

12398788 is a wasteful number, since it uses less digits than its factorization.

12398788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66002 (or 66000 counting only the distinct ones).

The product of its digits is 193536, while the sum is 46.

The square root of 12398788 is about 3521.1912756907. The cubic root of 12398788 is about 231.4513641264.

The spelling of 12398788 in words is "twelve million, three hundred ninety-eight thousand, seven hundred eighty-eight".