609929 has 2 divisors, whose sum is σ = 609930. Its totient is φ = 609928.

The previous prime is 609923. The next prime is 609979. The reversal of 609929 is 929906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336400 + 273529 = 580^2 + 523^2 .

It is a cyclic number.

It is not a de Polignac number, because 609929 - 2⁴ = 609913 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (609923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304964 + 304965.

It is an arithmetic number, because the mean of its divisors is an integer number (304965).

2⁶⁰⁹⁹²⁹ is an apocalyptic number.

It is an amenable number.

609929 is a deficient number, since it is larger than the sum of its proper divisors (1).

609929 is an equidigital number, since it uses as much as digits as its factorization.

609929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 609929 is about 780.9795131756. The cubic root of 609929 is about 84.8059703433.

The spelling of 609929 in words is "six hundred nine thousand, nine hundred twenty-nine".