7609 has 4 divisors (see below), whose sum is σ = 8704. Its totient is φ = 6516.

The previous prime is 7607. The next prime is 7621. The reversal of 7609 is 9067.

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.

It is a cyclic number.

It is not a de Polignac number, because 7609 - 2¹ = 7607 is a prime.

It is a Duffinian number.

7609 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7609.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7603) 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, 537 + ... + 550.

It is an arithmetic number, because the mean of its divisors is an integer number (2176).

2⁷⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

7609 is a deficient number, since it is larger than the sum of its proper divisors (1095).

7609 is a wasteful number, since it uses less digits than its factorization.

7609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 7609 is about 87.2295821382. The cubic root of 7609 is about 19.6687092902.

It can be divided in two parts, 7 and 609, that added together give a palindrome (616).

The spelling of 7609 in words is "seven thousand, six hundred nine".