959609 has 4 divisors (see below), whose sum is σ = 1096704. Its totient is φ = 822516.

The previous prime is 959603. The next prime is 959617. The reversal of 959609 is 906959.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 959609 - 2¹⁶ = 894073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (959603) 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, 68537 + ... + 68550.

It is an arithmetic number, because the mean of its divisors is an integer number (274176).

2⁹⁵⁹⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

959609 is a deficient number, since it is larger than the sum of its proper divisors (137095).

959609 is a wasteful number, since it uses less digits than its factorization.

959609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137094.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 959609 is about 979.5963454403. The cubic root of 959609 is about 98.6350882529.

Subtracting from 959609 its product of nonzero digits (21870), we obtain a palindrome (937739).

Subtracting from 959609 its reverse (906959), we obtain a triangular number (52650 = T₃₂₄).

The spelling of 959609 in words is "nine hundred fifty-nine thousand, six hundred nine".