897220 has 24 divisors (see below), whose sum is σ = 1905624. Its totient is φ = 354816.

The previous prime is 897191. The next prime is 897223. The reversal of 897220 is 22798.

It can be written as a sum of positive squares in 4 ways, for example, as 6084 + 891136 = 78^2 + 944^2 .

It is not an unprimeable number, because it can be changed into a prime (897223) 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, 2062 + ... + 2458.

It is an arithmetic number, because the mean of its divisors is an integer number (79401).

2⁸⁹⁷²²⁰ is an apocalyptic number.

It is an amenable number.

897220 is an abundant number, since it is smaller than the sum of its proper divisors (1008404).

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

897220 is a wasteful number, since it uses less digits than its factorization.

897220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 897220 is about 947.2169761992. The cubic root of 897220 is about 96.4494262817.

The spelling of 897220 in words is "eight hundred ninety-seven thousand, two hundred twenty".