3591609 has 8 divisors (see below), whose sum is σ = 5472960. Its totient is φ = 2052336.

The previous prime is 3591587. The next prime is 3591613. The reversal of 3591609 is 9061953.

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

It is not a de Polignac number, because 3591609 - 2⁷ = 3591481 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3591609.

It is not an unprimeable number, because it can be changed into a prime (3591649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85494 + ... + 85535.

It is an arithmetic number, because the mean of its divisors is an integer number (684120).

Almost surely, 2^3591609 is an apocalyptic number.

It is an amenable number.

3591609 is a deficient number, since it is larger than the sum of its proper divisors (1881351).

3591609 is a wasteful number, since it uses less digits than its factorization.

3591609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171039.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 3591609 is about 1895.1540834455. The cubic root of 3591609 is about 153.1427178721.

The spelling of 3591609 in words is "three million, five hundred ninety-one thousand, six hundred nine".