996813 has 8 divisors (see below), whose sum is σ = 1476800. Its totient is φ = 664524.

The previous prime is 996811. The next prime is 996841. The reversal of 996813 is 318699.

It is not a de Polignac number, because 996813 - 2¹ = 996811 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996811) 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 7 ways as a sum of consecutive naturals, for example, 18433 + ... + 18486.

It is an arithmetic number, because the mean of its divisors is an integer number (184600).

2⁹⁹⁶⁸¹³ is an apocalyptic number.

It is an amenable number.

996813 is a deficient number, since it is larger than the sum of its proper divisors (479987).

996813 is a wasteful number, since it uses less digits than its factorization.

996813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36928 (or 36922 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 996813 is about 998.4052283517. The cubic root of 996813 is about 99.8936536112.

The spelling of 996813 in words is "nine hundred ninety-six thousand, eight hundred thirteen".