965409 has 8 divisors (see below), whose sum is σ = 1355040. Its totient is φ = 609696.

The previous prime is 965407. The next prime is 965411. The reversal of 965409 is 904569.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (965407) and next prime (965411).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 965409 - 2¹ = 965407 is a prime.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 965409.

It is not an unprimeable number, because it can be changed into a prime (965401) 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 7 ways as a sum of consecutive naturals, for example, 8412 + ... + 8525.

It is an arithmetic number, because the mean of its divisors is an integer number (169380).

2⁹⁶⁵⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

965409 is a deficient number, since it is larger than the sum of its proper divisors (389631).

965409 is a wasteful number, since it uses less digits than its factorization.

965409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16959.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 965409 is about 982.5522886849. The cubic root of 965409 is about 98.8334102724.

The spelling of 965409 in words is "nine hundred sixty-five thousand, four hundred nine".