12098609 has 4 divisors (see below), whose sum is σ = 12380016. Its totient is φ = 11817204.

The previous prime is 12098561. The next prime is 12098617. The reversal of 12098609 is 90689021.

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 12098609 - 2¹² = 12094513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12098309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140639 + ... + 140724.

It is an arithmetic number, because the mean of its divisors is an integer number (3095004).

Almost surely, 2^12098609 is an apocalyptic number.

It is an amenable number.

12098609 is a deficient number, since it is larger than the sum of its proper divisors (281407).

12098609 is an equidigital number, since it uses as much as digits as its factorization.

12098609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281406.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 12098609 is about 3478.3054782466. The cubic root of 12098609 is about 229.5682448383.

The spelling of 12098609 in words is "twelve million, ninety-eight thousand, six hundred nine".