1097795689 has 9 divisors (see below), whose sum is σ = 1166769157. Its totient is φ = 1032689344.

The previous prime is 1097795683. The next prime is 1097795701. The reversal of 1097795689 is 9865977901.

The square root of 1097795689 is 33133.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 374616025 + 723179664 = 19355^2 + 26892^2 .

It is not a de Polignac number, because 1097795689 - 2⁹ = 1097795177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1097795683) 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 in 8 ways as a sum of consecutive naturals, for example, 562287 + ... + 564235.

Almost surely, 2^1097795689 is an apocalyptic number.

1097795689 is the 33133-rd square number.

1097795689 is the 16567-th centered octagonal number.

It is an amenable number.

1097795689 is a deficient number, since it is larger than the sum of its proper divisors (68973468).

1097795689 is an frugal number, since it uses more digits than its factorization.

1097795689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3932 (or 1966 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 61.

The cubic root of 1097795689 is about 1031.5901190751.

The spelling of 1097795689 in words is "one billion, ninety-seven million, seven hundred ninety-five thousand, six hundred eighty-nine".