997208 has 16 divisors (see below), whose sum is σ = 1930560. Its totient is φ = 482400.

The previous prime is 997207. The next prime is 997219. The reversal of 997208 is 802799.

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 997208.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1763 + ... + 2258.

It is an arithmetic number, because the mean of its divisors is an integer number (120660).

2⁹⁹⁷²⁰⁸ is an apocalyptic number.

It is an amenable number.

997208 is a deficient number, since it is larger than the sum of its proper divisors (933352).

997208 is a wasteful number, since it uses less digits than its factorization.

997208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058 (or 4054 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 997208 is about 998.6030242293. The cubic root of 997208 is about 99.9068465847.

The spelling of 997208 in words is "nine hundred ninety-seven thousand, two hundred eight".