1097369789 has 4 divisors (see below), whose sum is σ = 1106010624. Its totient is φ = 1088728956.

The previous prime is 1097369729. The next prime is 1097369807. The reversal of 1097369789 is 9879637901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1097369789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097369729) 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 3 ways as a sum of consecutive naturals, for example, 4320227 + ... + 4320480.

It is an arithmetic number, because the mean of its divisors is an integer number (276502656).

Almost surely, 2^1097369789 is an apocalyptic number.

It is an amenable number.

1097369789 is a deficient number, since it is larger than the sum of its proper divisors (8640835).

1097369789 is an equidigital number, since it uses as much as digits as its factorization.

1097369789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8640834.

The product of its (nonzero) digits is 5143824, while the sum is 59.

The square root of 1097369789 is about 33126.5722494797. The cubic root of 1097369789 is about 1031.4566968407.

The spelling of 1097369789 in words is "one billion, ninety-seven million, three hundred sixty-nine thousand, seven hundred eighty-nine".