659429 has 4 divisors (see below), whose sum is σ = 666060. Its totient is φ = 652800.

The previous prime is 659423. The next prime is 659437. The reversal of 659429 is 924956.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 362404 + 297025 = 602^2 + 545^2 .

It is a cyclic number.

It is not a de Polignac number, because 659429 - 2⁸ = 659173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3164 + ... + 3365.

It is an arithmetic number, because the mean of its divisors is an integer number (166515).

2⁶⁵⁹⁴²⁹ is an apocalyptic number.

It is an amenable number.

659429 is a deficient number, since it is larger than the sum of its proper divisors (6631).

659429 is a wasteful number, since it uses less digits than its factorization.

659429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6630.

The product of its digits is 19440, while the sum is 35.

The square root of 659429 is about 812.0523382147. The cubic root of 659429 is about 87.0407612756.

The spelling of 659429 in words is "six hundred fifty-nine thousand, four hundred twenty-nine".