608609 has 2 divisors, whose sum is σ = 608610. Its totient is φ = 608608.

The previous prime is 608593. The next prime is 608611. The reversal of 608609 is 906806.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 547600 + 61009 = 740^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 608609 - 2⁴ = 608593 is a prime.

It is a Sophie Germain prime.

Together with 608611, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (608659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304304 + 304305.

It is an arithmetic number, because the mean of its divisors is an integer number (304305).

2⁶⁰⁸⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

608609 is a deficient number, since it is larger than the sum of its proper divisors (1).

608609 is an equidigital number, since it uses as much as digits as its factorization.

608609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 608609 is about 780.1339628551. The cubic root of 608609 is about 84.7447475157.

The spelling of 608609 in words is "six hundred eight thousand, six hundred nine".