897804 has 60 divisors (see below), whose sum is σ = 2500344. Its totient is φ = 279936.

The previous prime is 897781. The next prime is 897817. The reversal of 897804 is 408798.

897804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5427 + ... + 5589.

2⁸⁹⁷⁸⁰⁴ 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 897804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250172).

897804 is an abundant number, since it is smaller than the sum of its proper divisors (1602540).

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

897804 is a wasteful number, since it uses less digits than its factorization.

897804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 897804 is about 947.5251975541. The cubic root of 897804 is about 96.4703480357.

The spelling of 897804 in words is "eight hundred ninety-seven thousand, eight hundred four".