320271685 has 8 divisors (see below), whose sum is σ = 388956960. Its totient is φ = 253130064.

The previous prime is 320271683. The next prime is 320271689. The reversal of 320271685 is 586172023.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320271685 - 2¹ = 320271683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320271685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320271683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385455 + ... + 386284.

It is an arithmetic number, because the mean of its divisors is an integer number (48619620).

Almost surely, 2^320271685 is an apocalyptic number.

It is an amenable number.

320271685 is a deficient number, since it is larger than the sum of its proper divisors (68685275).

320271685 is an equidigital number, since it uses as much as digits as its factorization.

320271685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771827.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 320271685 is about 17896.1360354687. The cubic root of 320271685 is about 684.1838967540.

The spelling of 320271685 in words is "three hundred twenty million, two hundred seventy-one thousand, six hundred eighty-five".