3678609 has 16 divisors (see below), whose sum is σ = 5633280. Its totient is φ = 2111760.

The previous prime is 3678601. The next prime is 3678617. The reversal of 3678609 is 9068763.

It is an interprime number because it is at equal distance from previous prime (3678601) and next prime (3678617).

It is not a de Polignac number, because 3678609 - 2³ = 3678601 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3678601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2307 + ... + 3560.

It is an arithmetic number, because the mean of its divisors is an integer number (352080).

Almost surely, 2^3678609 is an apocalyptic number.

It is an amenable number.

3678609 is a deficient number, since it is larger than the sum of its proper divisors (1954671).

3678609 is a wasteful number, since it uses less digits than its factorization.

3678609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 3678609 is about 1917.9700206208. The cubic root of 3678609 is about 154.3693976997.

The spelling of 3678609 in words is "three million, six hundred seventy-eight thousand, six hundred nine".