897864 has 64 divisors (see below), whose sum is σ = 2592000. Its totient is φ = 256320.

The previous prime is 897847. The next prime is 897877. The reversal of 897864 is 468798.

It is a happy number.

897864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

897864 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4927 + ... + 5105.

It is an arithmetic number, because the mean of its divisors is an integer number (40500).

2⁸⁹⁷⁸⁶⁴ 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 897864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296000).

897864 is an abundant number, since it is smaller than the sum of its proper divisors (1694136).

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

897864 is a wasteful number, since it uses less digits than its factorization.

897864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 214 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 897864 is about 947.5568584523. The cubic root of 897864 is about 96.4724970170.

The spelling of 897864 in words is "eight hundred ninety-seven thousand, eight hundred sixty-four".