1097729443 has 2 divisors, whose sum is σ = 1097729444. Its totient is φ = 1097729442.

The previous prime is 1097729419. The next prime is 1097729447. The reversal of 1097729443 is 3449277901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1097729443 - 2²⁵ = 1064175011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1097729393 and 1097729402.

It is not a weakly prime, because it can be changed into another prime (1097729447) 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, 548864721 + 548864722.

It is an arithmetic number, because the mean of its divisors is an integer number (548864722).

Almost surely, 2^1097729443 is an apocalyptic number.

1097729443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097729443 is an equidigital number, since it uses as much as digits as its factorization.

1097729443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 1097729443 is about 33132.0002867319. Note that the first 3 decimals coincide. The cubic root of 1097729443 is about 1031.5693683731.

The spelling of 1097729443 in words is "one billion, ninety-seven million, seven hundred twenty-nine thousand, four hundred forty-three".