12345689 has 8 divisors (see below), whose sum is σ = 13102848. Its totient is φ = 11592000.

The previous prime is 12345653. The next prime is 12345701. The reversal of 12345689 is 98654321.

It is a happy number.

12345689 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 not a de Polignac number, because 12345689 - 2⁸ = 12345433 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12045689) 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, 12284 + ... + 13250.

It is an arithmetic number, because the mean of its divisors is an integer number (1637856).

Almost surely, 2^12345689 is an apocalyptic number.

It is an amenable number.

12345689 is a deficient number, since it is larger than the sum of its proper divisors (757159).

12345689 is an equidigital number, since it uses as much as digits as its factorization.

12345689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735.

The product of its digits is 51840, while the sum is 38.

The square root of 12345689 is about 3513.6432658994. The cubic root of 12345689 is about 231.1204871090.

The spelling of 12345689 in words is "twelve million, three hundred forty-five thousand, six hundred eighty-nine".