7289609 has 2 divisors, whose sum is σ = 7289610. Its totient is φ = 7289608.

The previous prime is 7289603. The next prime is 7289621. The reversal of 7289609 is 9069827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4963984 + 2325625 = 2228^2 + 1525^2 .

It is a cyclic number.

It is not a de Polignac number, because 7289609 - 2¹⁶ = 7224073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7289603) 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, 3644804 + 3644805.

It is an arithmetic number, because the mean of its divisors is an integer number (3644805).

Almost surely, 2^7289609 is an apocalyptic number.

It is an amenable number.

7289609 is a deficient number, since it is larger than the sum of its proper divisors (1).

7289609 is an equidigital number, since it uses as much as digits as its factorization.

7289609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 7289609 is about 2699.9275916217. The cubic root of 7289609 is about 193.8956554402.

The spelling of 7289609 in words is "seven million, two hundred eighty-nine thousand, six hundred nine".