14398609 has 4 divisors (see below), whose sum is σ = 15245604. Its totient is φ = 13551616.

The previous prime is 14398577. The next prime is 14398613. The reversal of 14398609 is 90689341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90689341 = 739 ⋅122719.

It can be written as a sum of positive squares in 2 ways, for example, as 12780625 + 1617984 = 3575^2 + 1272^2 .

It is a cyclic number.

It is not a de Polignac number, because 14398609 - 2⁵ = 14398577 is a prime.

It is a super-2 number, since 2×14398609² = 414639882269762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14398639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423472 + ... + 423505.

It is an arithmetic number, because the mean of its divisors is an integer number (3811401).

Almost surely, 2^14398609 is an apocalyptic number.

It is an amenable number.

14398609 is a deficient number, since it is larger than the sum of its proper divisors (846995).

14398609 is an equidigital number, since it uses as much as digits as its factorization.

14398609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846994.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 14398609 is about 3794.5499074330. The cubic root of 14398609 is about 243.2802459198.

The spelling of 14398609 in words is "fourteen million, three hundred ninety-eight thousand, six hundred nine".