994691 has 2 divisors, whose sum is σ = 994692. Its totient is φ = 994690.

The previous prime is 994667. The next prime is 994699. The reversal of 994691 is 196499.

It is a strong prime.

It is an emirp because it is prime and its reverse (196499) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994691 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 994691.

It is not a weakly prime, because it can be changed into another prime (994699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497345 + 497346.

It is an arithmetic number, because the mean of its divisors is an integer number (497346).

2⁹⁹⁴⁶⁹¹ is an apocalyptic number.

994691 is a deficient number, since it is larger than the sum of its proper divisors (1).

994691 is an equidigital number, since it uses as much as digits as its factorization.

994691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 38.

The square root of 994691 is about 997.3419674314. The cubic root of 994691 is about 99.8227192344.

The spelling of 994691 in words is "nine hundred ninety-four thousand, six hundred ninety-one".