320884959 has 4 divisors (see below), whose sum is σ = 427846616. Its totient is φ = 213923304.

The previous prime is 320884957. The next prime is 320884981. The reversal of 320884959 is 959488023.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 320884959 - 2¹ = 320884957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320884951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53480824 + ... + 53480829.

It is an arithmetic number, because the mean of its divisors is an integer number (106961654).

Almost surely, 2^320884959 is an apocalyptic number.

320884959 is a deficient number, since it is larger than the sum of its proper divisors (106961657).

320884959 is a wasteful number, since it uses less digits than its factorization.

320884959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106961656.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 320884959 is about 17913.2620982333. The cubic root of 320884959 is about 684.6203227425.

The spelling of 320884959 in words is "three hundred twenty million, eight hundred eighty-four thousand, nine hundred fifty-nine".