997093169 has 2 divisors, whose sum is σ = 997093170. Its totient is φ = 997093168.

The previous prime is 997093157. The next prime is 997093177. The reversal of 997093169 is 961390799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 966401569 + 30691600 = 31087^2 + 5540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997093169 is a prime.

It is a super-2 number, since 2×997093169² = 1988389575332925122, which contains 22 as substring.

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 997093169.

It is not a weakly prime, because it can be changed into another prime (997093189) 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, 498546584 + 498546585.

It is an arithmetic number, because the mean of its divisors is an integer number (498546585).

Almost surely, 2^997093169 is an apocalyptic number.

It is an amenable number.

997093169 is a deficient number, since it is larger than the sum of its proper divisors (1).

997093169 is an equidigital number, since it uses as much as digits as its factorization.

997093169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 826686, while the sum is 53.

The square root of 997093169 is about 31576.7821191457. The cubic root of 997093169 is about 999.0301159624.

The spelling of 997093169 in words is "nine hundred ninety-seven million, ninety-three thousand, one hundred sixty-nine".