659434 has 4 divisors (see below), whose sum is σ = 989154. Its totient is φ = 329716.

The previous prime is 659423. The next prime is 659437. The reversal of 659434 is 434956.

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

It can be written as a sum of positive squares in only one way, i.e., 497025 + 162409 = 705^2 + 403^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 659396 and 659405.

It is not an unprimeable number, because it can be changed into a prime (659437) 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 as a sum of consecutive naturals, namely, 164857 + ... + 164860.

2⁶⁵⁹⁴³⁴ is an apocalyptic number.

659434 is a deficient number, since it is larger than the sum of its proper divisors (329720).

659434 is a wasteful number, since it uses less digits than its factorization.

659434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329719.

The product of its digits is 12960, while the sum is 31.

The square root of 659434 is about 812.0554168282. The cubic root of 659434 is about 87.0409812653.

The spelling of 659434 in words is "six hundred fifty-nine thousand, four hundred thirty-four".