7328609 has 2 divisors, whose sum is σ = 7328610. Its totient is φ = 7328608.

The previous prime is 7328591. The next prime is 7328621. The reversal of 7328609 is 9068237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7075600 + 253009 = 2660^2 + 503^2 .

It is an emirp because it is prime and its reverse (9068237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7328609 - 2⁸ = 7328353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7328669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3664304 + 3664305.

It is an arithmetic number, because the mean of its divisors is an integer number (3664305).

Almost surely, 2^7328609 is an apocalyptic number.

It is an amenable number.

7328609 is a deficient number, since it is larger than the sum of its proper divisors (1).

7328609 is an equidigital number, since it uses as much as digits as its factorization.

7328609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 7328609 is about 2707.1403731613. The cubic root of 7328609 is about 194.2408264389.

It can be divided in two parts, 73 and 28609, that added together give a palindrome (28682).

The spelling of 7328609 in words is "seven million, three hundred twenty-eight thousand, six hundred nine".