1097790017 has 2 divisors, whose sum is σ = 1097790018. Its totient is φ = 1097790016.

The previous prime is 1097789993. The next prime is 1097790019. The reversal of 1097790017 is 7100977901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 919059856 + 178730161 = 30316^2 + 13369^2 .

It is a cyclic number.

It is not a de Polignac number, because 1097790017 - 2⁸ = 1097789761 is a prime.

Together with 1097790019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1097790019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548895008 + 548895009.

It is an arithmetic number, because the mean of its divisors is an integer number (548895009).

Almost surely, 2^1097790017 is an apocalyptic number.

It is an amenable number.

1097790017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097790017 is an equidigital number, since it uses as much as digits as its factorization.

1097790017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27783, while the sum is 41.

The square root of 1097790017 is about 33132.9144054670. The cubic root of 1097790017 is about 1031.5883424272.

The spelling of 1097790017 in words is "one billion, ninety-seven million, seven hundred ninety thousand, seventeen".