897684 has 24 divisors (see below), whose sum is σ = 2110080. Its totient is φ = 297024.

The previous prime is 897671. The next prime is 897691. The reversal of 897684 is 486798.

It is a happy number.

897684 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 897684.

It is an unprimeable number.

897684 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 7 ways as a sum of consecutive naturals, for example, 2712 + ... + 3024.

It is an arithmetic number, because the mean of its divisors is an integer number (87920).

2⁸⁹⁷⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

897684 is an abundant number, since it is smaller than the sum of its proper divisors (1212396).

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

897684 is a wasteful number, since it uses less digits than its factorization.

897684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 557 counting only the distinct ones).

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

The square root of 897684 is about 947.4618725838. The cubic root of 897684 is about 96.4660497859.

The spelling of 897684 in words is "eight hundred ninety-seven thousand, six hundred eighty-four".