12394609 has 2 divisors, whose sum is σ = 12394610. Its totient is φ = 12394608.

The previous prime is 12394607. The next prime is 12394663. The reversal of 12394609 is 90649321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11122225 + 1272384 = 3335^2 + 1128^2 .

It is a cyclic number.

It is not a de Polignac number, because 12394609 - 2¹ = 12394607 is a prime.

Together with 12394607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12394601) 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 as a sum of consecutive naturals, namely, 6197304 + 6197305.

It is an arithmetic number, because the mean of its divisors is an integer number (6197305).

Almost surely, 2^12394609 is an apocalyptic number.

It is an amenable number.

12394609 is a deficient number, since it is larger than the sum of its proper divisors (1).

12394609 is an equidigital number, since it uses as much as digits as its factorization.

12394609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 12394609 is about 3520.5978185530. The cubic root of 12394609 is about 231.4253577152.

The spelling of 12394609 in words is "twelve million, three hundred ninety-four thousand, six hundred nine".