959409 has 18 divisors (see below), whose sum is σ = 1524978. Its totient is φ = 580800.

The previous prime is 959389. The next prime is 959449. The reversal of 959409 is 904959.

It can be written as a sum of positive squares in only one way, i.e., 680625 + 278784 = 825^2 + 528^2 .

It is not a de Polignac number, because 959409 - 2⁵ = 959377 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (959449) 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 17 ways as a sum of consecutive naturals, for example, 649 + ... + 1529.

It is an arithmetic number, because the mean of its divisors is an integer number (84721).

2⁹⁵⁹⁴⁰⁹ is an apocalyptic number.

959409 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

959409 is a deficient number, since it is larger than the sum of its proper divisors (565569).

959409 is a wasteful number, since it uses less digits than its factorization.

959409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 959409 is about 979.4942572573. The cubic root of 959409 is about 98.6282353269.

The spelling of 959409 in words is "nine hundred fifty-nine thousand, four hundred nine".