3704609 has 4 divisors (see below), whose sum is σ = 3712704. Its totient is φ = 3696516.

The previous prime is 3704599. The next prime is 3704611. The reversal of 3704609 is 9064073.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9064073 = 71 ⋅127663.

It is a cyclic number.

It is not a de Polignac number, because 3704609 - 2⁸ = 3704353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3704629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3317 + ... + 4290.

It is an arithmetic number, because the mean of its divisors is an integer number (928176).

Almost surely, 2^3704609 is an apocalyptic number.

It is an amenable number.

3704609 is a deficient number, since it is larger than the sum of its proper divisors (8095).

3704609 is an equidigital number, since it uses as much as digits as its factorization.

3704609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8094.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 3704609 is about 1924.7360858050. The cubic root of 3704609 is about 154.7322327997.

Subtracting from 3704609 its product of nonzero digits (4536), we obtain a palindrome (3700073).

The spelling of 3704609 in words is "three million, seven hundred four thousand, six hundred nine".