959669 has 6 divisors (see below), whose sum is σ = 987714. Its totient is φ = 932400.

The previous prime is 959659. The next prime is 959677. The reversal of 959669 is 966959.

It can be written as a sum of positive squares in 3 ways, for example, as 722500 + 237169 = 850^2 + 487^2 .

It is a de Polignac number, because none of the positive numbers 2^k-959669 is a prime.

It is a super-2 number, since 2×959669² = 1841929179122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (959659) 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 5 ways as a sum of consecutive naturals, for example, 1019 + ... + 1719.

It is an arithmetic number, because the mean of its divisors is an integer number (164619).

2⁹⁵⁹⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

959669 is a deficient number, since it is larger than the sum of its proper divisors (28045).

959669 is an equidigital number, since it uses as much as digits as its factorization.

959669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 738 counting only the distinct ones).

The product of its digits is 131220, while the sum is 44.

The square root of 959669 is about 979.6269698207. The cubic root of 959669 is about 98.6371439450.

The spelling of 959669 in words is "nine hundred fifty-nine thousand, six hundred sixty-nine".