1097971793 has 2 divisors, whose sum is σ = 1097971794. Its totient is φ = 1097971792.

The previous prime is 1097971711. The next prime is 1097971837. The reversal of 1097971793 is 3971797901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1008253009 + 89718784 = 31753^2 + 9472^2 .

It is a cyclic number.

It is not a de Polignac number, because 1097971793 - 2¹⁸ = 1097709649 is a prime.

It is not a weakly prime, because it can be changed into another prime (1097971093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548985896 + 548985897.

It is an arithmetic number, because the mean of its divisors is an integer number (548985897).

Almost surely, 2^1097971793 is an apocalyptic number.

It is an amenable number.

1097971793 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097971793 is an equidigital number, since it uses as much as digits as its factorization.

1097971793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750141, while the sum is 53.

The square root of 1097971793 is about 33135.6574251968. The cubic root of 1097971793 is about 1031.6452773147.

The spelling of 1097971793 in words is "one billion, ninety-seven million, nine hundred seventy-one thousand, seven hundred ninety-three".