997852 has 6 divisors (see below), whose sum is σ = 1746248. Its totient is φ = 498924.

The previous prime is 997813. The next prime is 997877. The reversal of 997852 is 258799.

It is a super-2 number, since 2×997852² = 1991417227808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable 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 as a sum of consecutive naturals, namely, 124728 + ... + 124735.

2⁹⁹⁷⁸⁵² is an apocalyptic number.

It is an amenable number.

997852 is a deficient number, since it is larger than the sum of its proper divisors (748396).

997852 is a wasteful number, since it uses less digits than its factorization.

997852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249467 (or 249465 counting only the distinct ones).

The product of its digits is 45360, while the sum is 40.

The square root of 997852 is about 998.9254226418. The cubic root of 997852 is about 99.9283486731.

It can be divided in two parts, 997 and 852, that added together give a square (1849 = 43²).

The spelling of 997852 in words is "nine hundred ninety-seven thousand, eight hundred fifty-two".