3618609 has 8 divisors (see below), whose sum is σ = 4841760. Its totient is φ = 2403936.

The previous prime is 3618583. The next prime is 3618631. The reversal of 3618609 is 9068163.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3618609 is a prime.

3618609 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3618609.

It is not an unprimeable number, because it can be changed into a prime (3618679) 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 7 ways as a sum of consecutive naturals, for example, 1044 + ... + 2885.

It is an arithmetic number, because the mean of its divisors is an integer number (605220).

Almost surely, 2^3618609 is an apocalyptic number.

It is an amenable number.

3618609 is a deficient number, since it is larger than the sum of its proper divisors (1223151).

3618609 is a wasteful number, since it uses less digits than its factorization.

3618609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 3618609 is about 1902.2641772372. The cubic root of 3618609 is about 153.5255115035.

The spelling of 3618609 in words is "three million, six hundred eighteen thousand, six hundred nine".