1097066791 has 2 divisors, whose sum is σ = 1097066792. Its totient is φ = 1097066790.

The previous prime is 1097066779. The next prime is 1097066881. The reversal of 1097066791 is 1976607901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1097066791 - 2⁹ = 1097066279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1097066291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548533395 + 548533396.

It is an arithmetic number, because the mean of its divisors is an integer number (548533396).

Almost surely, 2^1097066791 is an apocalyptic number.

1097066791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097066791 is an equidigital number, since it uses as much as digits as its factorization.

1097066791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 1097066791 is about 33121.9985960992. The cubic root of 1097066791 is about 1031.3617552546.

The spelling of 1097066791 in words is "one billion, ninety-seven million, sixty-six thousand, seven hundred ninety-one".