973288909 has 2 divisors, whose sum is σ = 973288910. Its totient is φ = 973288908.

The previous prime is 973288903. The next prime is 973288933. The reversal of 973288909 is 909882379.

973288909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 973252809 + 36100 = 31197^2 + 190^2 .

It is a cyclic number.

It is not a de Polignac number, because 973288909 - 2²¹ = 971191757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 973288909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (973288903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486644454 + 486644455.

It is an arithmetic number, because the mean of its divisors is an integer number (486644455).

Almost surely, 2^973288909 is an apocalyptic number.

It is an amenable number.

973288909 is a deficient number, since it is larger than the sum of its proper divisors (1).

973288909 is an equidigital number, since it uses as much as digits as its factorization.

973288909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The square root of 973288909 is about 31197.5785759087. The cubic root of 973288909 is about 991.0158293987.

The spelling of 973288909 in words is "nine hundred seventy-three million, two hundred eighty-eight thousand, nine hundred nine".