997206 has 16 divisors (see below), whose sum is σ = 2279424. Its totient is φ = 284904.

The previous prime is 997201. The next prime is 997207. The reversal of 997206 is 602799.

997206 is nontrivially palindromic in base 13.

It is a Curzon number.

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 997206.

It is not an unprimeable number, because it can be changed into a prime (997201) by changing a digit.

997206 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 11830 + ... + 11913.

It is an arithmetic number, because the mean of its divisors is an integer number (142464).

2⁹⁹⁷²⁰⁶ is an apocalyptic number.

997206 is an abundant number, since it is smaller than the sum of its proper divisors (1282218).

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

997206 is a wasteful number, since it uses less digits than its factorization.

997206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23755.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 997206 is about 998.6020228299. The cubic root of 997206 is about 99.9067797936.

The spelling of 997206 in words is "nine hundred ninety-seven thousand, two hundred six".