897960 has 64 divisors (see below), whose sum is σ = 3081600. Its totient is φ = 205056.

The previous prime is 897947. The next prime is 897971. The reversal of 897960 is 69798.

897960 = 28² + 29² + ... + 139².

It is an unprimeable number.

897960 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306 + ... + 1374.

It is an arithmetic number, because the mean of its divisors is an integer number (48150).

2⁸⁹⁷⁹⁶⁰ 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 897960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1540800).

897960 is an abundant number, since it is smaller than the sum of its proper divisors (2183640).

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

897960 is a wasteful number, since it uses less digits than its factorization.

897960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 897960 is about 947.6075136891. The cubic root of 897960 is about 96.4759351879.

The spelling of 897960 in words is "eight hundred ninety-seven thousand, nine hundred sixty".