3684609 has 24 divisors (see below), whose sum is σ = 5634720. Its totient is φ = 2405376.

The previous prime is 3684607. The next prime is 3684641. The reversal of 3684609 is 9064863.

It is not a de Polignac number, because 3684609 - 2¹ = 3684607 is a prime.

3684609 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3684601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14209 + ... + 14465.

It is an arithmetic number, because the mean of its divisors is an integer number (234780).

Almost surely, 2^3684609 is an apocalyptic number.

It is an amenable number.

3684609 is a deficient number, since it is larger than the sum of its proper divisors (1950111).

3684609 is an equidigital number, since it uses as much as digits as its factorization.

3684609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 3684609 is about 1919.5335370865. The cubic root of 3684609 is about 154.4532802464.

The spelling of 3684609 in words is "three million, six hundred eighty-four thousand, six hundred nine".