997112 has 16 divisors (see below), whose sum is σ = 1887840. Its totient is φ = 493696.

The previous prime is 997111. The next prime is 997121. The reversal of 997112 is 211799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353 + ... + 1455.

It is an arithmetic number, because the mean of its divisors is an integer number (117990).

2⁹⁹⁷¹¹² is an apocalyptic number.

It is an amenable number.

997112 is a deficient number, since it is larger than the sum of its proper divisors (890728).

997112 is a wasteful number, since it uses less digits than its factorization.

997112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222 (or 1218 counting only the distinct ones).

The product of its digits is 1134, while the sum is 29.

The square root of 997112 is about 998.5549559238. The cubic root of 997112 is about 99.9036405116.

The spelling of 997112 in words is "nine hundred ninety-seven thousand, one hundred twelve".