997019 has 2 divisors, whose sum is σ = 997020. Its totient is φ = 997018.

The previous prime is 997013. The next prime is 997021. The reversal of 997019 is 910799.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (910799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 997019 - 2⁸ = 996763 is a prime.

It is a super-2 number, since 2×997019² = 1988093772722, which contains 22 as substring.

Together with 997021, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 997019.

It is not a weakly prime, because it can be changed into another prime (997013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498509 + 498510.

It is an arithmetic number, because the mean of its divisors is an integer number (498510).

2⁹⁹⁷⁰¹⁹ is an apocalyptic number.

997019 is a deficient number, since it is larger than the sum of its proper divisors (1).

997019 is an equidigital number, since it uses as much as digits as its factorization.

997019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 997019 is about 998.5083875461. The cubic root of 997019 is about 99.9005344321.

The spelling of 997019 in words is "nine hundred ninety-seven thousand, nineteen".