997084943 has 2 divisors, whose sum is σ = 997084944. Its totient is φ = 997084942.

The previous prime is 997084927. The next prime is 997084987. The reversal of 997084943 is 349480799.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 997084943 - 2⁴ = 997084927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997084643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498542471 + 498542472.

It is an arithmetic number, because the mean of its divisors is an integer number (498542472).

Almost surely, 2^997084943 is an apocalyptic number.

997084943 is a deficient number, since it is larger than the sum of its proper divisors (1).

997084943 is an equidigital number, since it uses as much as digits as its factorization.

997084943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 997084943 is about 31576.6518649460. The cubic root of 997084943 is about 999.0273686283.

The spelling of 997084943 in words is "nine hundred ninety-seven million, eighty-four thousand, nine hundred forty-three".