12309998 has 8 divisors (see below), whose sum is σ = 18600192. Its totient is φ = 6109936.

The previous prime is 12309961. The next prime is 12310013. The reversal of 12309998 is 89990321.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22190 + ... + 22737.

It is an arithmetic number, because the mean of its divisors is an integer number (2325024).

Almost surely, 2^12309998 is an apocalyptic number.

12309998 is a deficient number, since it is larger than the sum of its proper divisors (6290194).

12309998 is a wasteful number, since it uses less digits than its factorization.

12309998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45066.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 12309998 is about 3508.5606735526. The cubic root of 12309998 is about 230.8975514424.

The spelling of 12309998 in words is "twelve million, three hundred nine thousand, nine hundred ninety-eight".