969509 has 2 divisors, whose sum is σ = 969510. Its totient is φ = 969508.

The previous prime is 969503. The next prime is 969533. The reversal of 969509 is 905969.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 722500 + 247009 = 850^2 + 497^2 .

It is a cyclic number.

It is not a de Polignac number, because 969509 - 2⁸ = 969253 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 969509.

It is not a weakly prime, because it can be changed into another prime (969503) 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 as a sum of consecutive naturals, namely, 484754 + 484755.

It is an arithmetic number, because the mean of its divisors is an integer number (484755).

2⁹⁶⁹⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

969509 is a deficient number, since it is larger than the sum of its proper divisors (1).

969509 is an equidigital number, since it uses as much as digits as its factorization.

969509 is an odious number, because the sum of its binary digits is odd.

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

The square root of 969509 is about 984.6364811442. The cubic root of 969509 is about 98.9731246982.

The spelling of 969509 in words is "nine hundred sixty-nine thousand, five hundred nine".