996988 has 12 divisors (see below), whose sum is σ = 1752912. Its totient is φ = 496160.

The previous prime is 996979. The next prime is 997001. The reversal of 996988 is 889699.

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 in 3 ways as a sum of consecutive naturals, for example, 681 + ... + 1567.

It is an arithmetic number, because the mean of its divisors is an integer number (146076).

2⁹⁹⁶⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

996988 is a deficient number, since it is larger than the sum of its proper divisors (755924).

996988 is a wasteful number, since it uses less digits than its factorization.

996988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172 (or 1170 counting only the distinct ones).

The product of its digits is 279936, while the sum is 49.

The square root of 996988 is about 998.4928642709. The cubic root of 996988 is about 99.8994990294.

The spelling of 996988 in words is "nine hundred ninety-six thousand, nine hundred eighty-eight".