12398789 has 8 divisors (see below), whose sum is σ = 13514592. Its totient is φ = 11306160.

The previous prime is 12398779. The next prime is 12398803. The reversal of 12398789 is 98789321.

12398789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12398789 is a prime.

It is a super-3 number, since 3×12398789³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12398719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4667 + ... + 6824.

It is an arithmetic number, because the mean of its divisors is an integer number (1689324).

Almost surely, 2^12398789 is an apocalyptic number.

It is an amenable number.

12398789 is a deficient number, since it is larger than the sum of its proper divisors (1115803).

12398789 is a wasteful number, since it uses less digits than its factorization.

12398789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11587.

The product of its digits is 217728, while the sum is 47.

The square root of 12398789 is about 3521.1914176881. The cubic root of 12398789 is about 231.4513703488.

The spelling of 12398789 in words is "twelve million, three hundred ninety-eight thousand, seven hundred eighty-nine".