997876 has 12 divisors (see below), whose sum is σ = 1905120. Its totient is φ = 453560.

The previous prime is 997813. The next prime is 997877. The reversal of 997876 is 678799.

It is a super-2 number, since 2×997876² = 1991513022752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997877) 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, 11296 + ... + 11383.

It is an arithmetic number, because the mean of its divisors is an integer number (158760).

2⁹⁹⁷⁸⁷⁶ is an apocalyptic number.

It is an amenable number.

997876 is a deficient number, since it is larger than the sum of its proper divisors (907244).

997876 is a wasteful number, since it uses less digits than its factorization.

997876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22694 (or 22692 counting only the distinct ones).

The product of its digits is 190512, while the sum is 46.

The square root of 997876 is about 998.9374354783. The cubic root of 997876 is about 99.9291498144.

The spelling of 997876 in words is "nine hundred ninety-seven thousand, eight hundred seventy-six".