997250 has 16 divisors (see below), whose sum is σ = 1867320. Its totient is φ = 398800.

The previous prime is 997247. The next prime is 997259. The reversal of 997250 is 52799.

It can be written as a sum of positive squares in 4 ways, for example, as 279841 + 717409 = 529^2 + 847^2 .

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 997250.

It is not an unprimeable number, because it can be changed into a prime (997259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1745 + ... + 2244.

2⁹⁹⁷²⁵⁰ is an apocalyptic number.

997250 is a deficient number, since it is larger than the sum of its proper divisors (870070).

997250 is a wasteful number, since it uses less digits than its factorization.

997250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006 (or 3996 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 997250 is about 998.6240533855. The cubic root of 997250 is about 99.9082491769.

The spelling of 997250 in words is "nine hundred ninety-seven thousand, two hundred fifty".