7609321 has 2 divisors, whose sum is σ = 7609322. Its totient is φ = 7609320.

The previous prime is 7609279. The next prime is 7609333. The reversal of 7609321 is 1239067.

7609321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3861225 + 3748096 = 1965^2 + 1936^2 .

It is an emirp because it is prime and its reverse (1239067) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7609321 - 2⁷ = 7609193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7609321.

It is not a weakly prime, because it can be changed into another prime (7606321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3804660 + 3804661.

It is an arithmetic number, because the mean of its divisors is an integer number (3804661).

Almost surely, 2^7609321 is an apocalyptic number.

It is an amenable number.

7609321 is a deficient number, since it is larger than the sum of its proper divisors (1).

7609321 is an equidigital number, since it uses as much as digits as its factorization.

7609321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 7609321 is about 2758.4997734276. The cubic root of 7609321 is about 196.6898587352.

The spelling of 7609321 in words is "seven million, six hundred nine thousand, three hundred twenty-one".