1097495779 has 2 divisors, whose sum is σ = 1097495780. Its totient is φ = 1097495778.

The previous prime is 1097495753. The next prime is 1097495801. The reversal of 1097495779 is 9775947901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1097495779 - 2⁵ = 1097495747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1097495479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548747889 + 548747890.

It is an arithmetic number, because the mean of its divisors is an integer number (548747890).

Almost surely, 2^1097495779 is an apocalyptic number.

1097495779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097495779 is an equidigital number, since it uses as much as digits as its factorization.

1097495779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5000940, while the sum is 58.

The square root of 1097495779 is about 33128.4738404895. The cubic root of 1097495779 is about 1031.4961694833.

The spelling of 1097495779 in words is "one billion, ninety-seven million, four hundred ninety-five thousand, seven hundred seventy-nine".