12357789 has 4 divisors (see below), whose sum is σ = 16477056. Its totient is φ = 8238524.

The previous prime is 12357781. The next prime is 12357791. The reversal of 12357789 is 98775321.

12357789 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12357789 - 2³ = 12357781 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 12357789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12357781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2059629 + ... + 2059634.

It is an arithmetic number, because the mean of its divisors is an integer number (4119264).

Almost surely, 2^12357789 is an apocalyptic number.

It is an amenable number.

12357789 is a deficient number, since it is larger than the sum of its proper divisors (4119267).

12357789 is an equidigital number, since it uses as much as digits as its factorization.

12357789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119266.

The product of its digits is 105840, while the sum is 42.

The square root of 12357789 is about 3515.3647036972. The cubic root of 12357789 is about 231.1959694564.

The spelling of 12357789 in words is "twelve million, three hundred fifty-seven thousand, seven hundred eighty-nine".