996811 has 2 divisors, whose sum is σ = 996812. Its totient is φ = 996810.

The previous prime is 996803. The next prime is 996841. The reversal of 996811 is 118699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 996811 - 2³ = 996803 is a prime.

It is not a weakly prime, because it can be changed into another prime (996841) 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 as a sum of consecutive naturals, namely, 498405 + 498406.

It is an arithmetic number, because the mean of its divisors is an integer number (498406).

2⁹⁹⁶⁸¹¹ is an apocalyptic number.

996811 is the 447-th centered decagonal number.

996811 is a deficient number, since it is larger than the sum of its proper divisors (1).

996811 is an equidigital number, since it uses as much as digits as its factorization.

996811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 34.

The square root of 996811 is about 998.4042267539. The cubic root of 996811 is about 99.8935868025.

The spelling of 996811 in words is "nine hundred ninety-six thousand, eight hundred eleven".