997043 has 2 divisors, whose sum is σ = 997044. Its totient is φ = 997042.

The previous prime is 997037. The next prime is 997057. The reversal of 997043 is 340799.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 997043 - 2⁶ = 996979 is a prime.

It is a Sophie Germain prime.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 498521 + 498522.

It is an arithmetic number, because the mean of its divisors is an integer number (498522).

2⁹⁹⁷⁰⁴³ is an apocalyptic number.

997043 is a deficient number, since it is larger than the sum of its proper divisors (1).

997043 is an equidigital number, since it uses as much as digits as its factorization.

997043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 997043 is about 998.5204053999. The cubic root of 997043 is about 99.9013360195.

The spelling of 997043 in words is "nine hundred ninety-seven thousand, forty-three".