997116093 has 6 divisors (see below), whose sum is σ = 1440278814. Its totient is φ = 664744056.

The previous prime is 997116061. The next prime is 997116103. The reversal of 997116093 is 390611799.

It can be written as a sum of positive squares in only one way, i.e., 690796089 + 306320004 = 26283^2 + 17502^2 .

It is not a de Polignac number, because 997116093 - 2⁵ = 997116061 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997116013) 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 in 5 ways as a sum of consecutive naturals, for example, 55395330 + ... + 55395347.

It is an arithmetic number, because the mean of its divisors is an integer number (240046469).

Almost surely, 2^997116093 is an apocalyptic number.

It is an amenable number.

997116093 is a deficient number, since it is larger than the sum of its proper divisors (443162721).

997116093 is a wasteful number, since it uses less digits than its factorization.

997116093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110790683 (or 110790680 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 45.

The square root of 997116093 is about 31577.1451052814. The cubic root of 997116093 is about 999.0377720811.

The spelling of 997116093 in words is "nine hundred ninety-seven million, one hundred sixteen thousand, ninety-three".