997350113 has 2 divisors, whose sum is σ = 997350114.
Its totient is φ = 997350112.
The previous prime is 997350097. The next prime is 997350139. The reversal of 997350113 is 311053799.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 950673889 + 46676224 = 30833^2 + 6832^2
It is a cyclic number.
It is not a de Polignac number, because 997350113 - 24 = 997350097 is a prime.
It is a super-2 number, since 2×9973501132 = 1989414495802225538, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (997350143) 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, 498675056 + 498675057.
It is an arithmetic number, because the mean of its divisors is an integer number (498675057).
Almost surely, 2997350113 is an apocalyptic number.
It is an amenable number.
997350113 is a deficient number, since it is larger than the sum of its proper divisors (1).
997350113 is an equidigital number, since it uses as much as digits as its factorization.
997350113 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 25515, while the sum is 38.
The square root of 997350113 is about 31580.8504160353.
The cubic root of 997350113 is about 999.1159229715.
The spelling of 997350113 in words is "nine hundred ninety-seven million, three hundred fifty thousand, one hundred thirteen".