12320489 has 8 divisors (see below), whose sum is σ = 12684672. Its totient is φ = 11959920.

The previous prime is 12320471. The next prime is 12320491. The reversal of 12320489 is 98402321.

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-12320489 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12320449) 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, 6992 + ... + 8574.

It is an arithmetic number, because the mean of its divisors is an integer number (1585584).

Almost surely, 2^12320489 is an apocalyptic number.

It is an amenable number.

12320489 is a deficient number, since it is larger than the sum of its proper divisors (364183).

12320489 is a wasteful number, since it uses less digits than its factorization.

12320489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 12320489 is about 3510.0554126680. The cubic root of 12320489 is about 230.9631257396.

The spelling of 12320489 in words is "twelve million, three hundred twenty thousand, four hundred eighty-nine".