959509 has 4 divisors (see below), whose sum is σ = 970380. Its totient is φ = 948640.

The previous prime is 959489. The next prime is 959533. The reversal of 959509 is 905959.

It is a happy number.

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 228484 + 731025 = 478^2 + 855^2 .

It is a cyclic number.

It is not a de Polignac number, because 959509 - 2⁵ = 959477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (959579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5302 + ... + 5479.

It is an arithmetic number, because the mean of its divisors is an integer number (242595).

2⁹⁵⁹⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

959509 is a deficient number, since it is larger than the sum of its proper divisors (10871).

959509 is a wasteful number, since it uses less digits than its factorization.

959509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10870.

The product of its (nonzero) digits is 18225, while the sum is 37.

The square root of 959509 is about 979.5453026787. The cubic root of 959509 is about 98.6316619089.

It can be divided in two parts, 95950 and 9, that added together give a palindrome (95959).

The spelling of 959509 in words is "nine hundred fifty-nine thousand, five hundred nine".