897984 has 42 divisors (see below), whose sum is σ = 2575560. Its totient is φ = 299136.

The previous prime is 897983. The next prime is 898013. The reversal of 897984 is 489798.

897984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 897984.

It is not an unprimeable number, because it can be changed into a prime (897983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204 + ... + 1355.

2⁸⁹⁷⁹⁸⁴ 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 897984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1287780).

897984 is an abundant number, since it is smaller than the sum of its proper divisors (1677576).

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

897984 is a wasteful number, since it uses less digits than its factorization.

897984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577 (or 1564 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 897984 is about 947.6201770752. The cubic root of 897984 is about 96.4767946923.

It can be divided in two parts, 897 and 984, that added together give a palindrome (1881).

The spelling of 897984 in words is "eight hundred ninety-seven thousand, nine hundred eighty-four".