997284 has 24 divisors (see below), whose sum is σ = 2384928. Its totient is φ = 324160.

The previous prime is 997279. The next prime is 997307. The reversal of 997284 is 482799.

It is an unprimeable number.

997284 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, 522 + ... + 1505.

It is an arithmetic number, because the mean of its divisors is an integer number (99372).

2⁹⁹⁷²⁸⁴ is an apocalyptic number.

It is an amenable number.

997284 is an abundant number, since it is smaller than the sum of its proper divisors (1387644).

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

997284 is a wasteful number, since it uses less digits than its factorization.

997284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075 (or 2073 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 997284 is about 998.6410766637. The cubic root of 997284 is about 99.9093845799.

The spelling of 997284 in words is "nine hundred ninety-seven thousand, two hundred eighty-four".