320897000 has 64 divisors (see below), whose sum is σ = 754790400. Its totient is φ = 127694400.

The previous prime is 320896987. The next prime is 320897011. The reversal of 320897000 is 798023.

320897000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222281 + ... + 223719.

It is an arithmetic number, because the mean of its divisors is an integer number (11793600).

Almost surely, 2^320897000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320897000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377395200).

320897000 is an abundant number, since it is smaller than the sum of its proper divisors (433893400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320897000 is a wasteful number, since it uses less digits than its factorization.

320897000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683 (or 1669 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 320897000 is about 17913.5981868524. The cubic root of 320897000 is about 684.6288859466.

The spelling of 320897000 in words is "three hundred twenty million, eight hundred ninety-seven thousand".