1204609 has 8 divisors (see below), whose sum is σ = 1414208. Its totient is φ = 1004400.

The previous prime is 1204607. The next prime is 1204613. The reversal of 1204609 is 9064021.

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 1204609 - 2¹ = 1204607 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1204609.

It is not an unprimeable number, because it can be changed into a prime (1204607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2067 + ... + 2584.

It is an arithmetic number, because the mean of its divisors is an integer number (176776).

2^1204609 is an apocalyptic number.

It is an amenable number.

1204609 is a deficient number, since it is larger than the sum of its proper divisors (209599).

1204609 is an equidigital number, since it uses as much as digits as its factorization.

1204609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1204609 is about 1097.5468099357. The cubic root of 1204609 is about 106.4017329226.

The spelling of 1204609 in words is "one million, two hundred four thousand, six hundred nine".