997350097 has 2 divisors, whose sum is σ = 997350098. Its totient is φ = 997350096.

The previous prime is 997350089. The next prime is 997350113. The reversal of 997350097 is 790053799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 674752576 + 322597521 = 25976^2 + 17961^2 .

It is a cyclic number.

It is not a de Polignac number, because 997350097 - 2³ = 997350089 is a prime.

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 997350097.

It is not a weakly prime, because it can be changed into another prime (997350077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498675048 + 498675049.

It is an arithmetic number, because the mean of its divisors is an integer number (498675049).

Almost surely, 2^997350097 is an apocalyptic number.

It is an amenable number.

997350097 is a deficient number, since it is larger than the sum of its proper divisors (1).

997350097 is an equidigital number, since it uses as much as digits as its factorization.

997350097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 535815, while the sum is 49.

The square root of 997350097 is about 31580.8501627173. The cubic root of 997350097 is about 999.1159176287.

The spelling of 997350097 in words is "nine hundred ninety-seven million, three hundred fifty thousand, ninety-seven".