320071005 has 12 divisors (see below), whose sum is σ = 554789820. Its totient is φ = 170704512.

The previous prime is 320070913. The next prime is 320071009. The reversal of 320071005 is 500170023.

It can be written as a sum of positive squares in 2 ways, for example, as 87721956 + 232349049 = 9366^2 + 15243^2 .

It is not a de Polignac number, because 320071005 - 2¹⁴ = 320054621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320071009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3556300 + ... + 3556389.

It is an arithmetic number, because the mean of its divisors is an integer number (46232485).

Almost surely, 2^320071005 is an apocalyptic number.

It is an amenable number.

320071005 is a deficient number, since it is larger than the sum of its proper divisors (234718815).

320071005 is a wasteful number, since it uses less digits than its factorization.

320071005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7112700 (or 7112697 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 320071005 is about 17890.5283600010. The cubic root of 320071005 is about 684.0409652802.

The spelling of 320071005 in words is "three hundred twenty million, seventy-one thousand, five".