11097779 has 16 divisors (see below), whose sum is σ = 13982976. Its totient is φ = 8556000.

The previous prime is 11097773. The next prime is 11097871. The reversal of 11097779 is 97779011.

It is a cyclic number.

It is not a de Polignac number, because 11097779 - 2¹² = 11093683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11097773) 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 15 ways as a sum of consecutive naturals, for example, 7064 + ... + 8490.

It is an arithmetic number, because the mean of its divisors is an integer number (873936).

Almost surely, 2^11097779 is an apocalyptic number.

11097779 is a deficient number, since it is larger than the sum of its proper divisors (2885197).

11097779 is a wasteful number, since it uses less digits than its factorization.

11097779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546.

The product of its (nonzero) digits is 27783, while the sum is 41.

The square root of 11097779 is about 3331.3329164165. The cubic root of 11097779 is about 223.0550314290.

It can be divided in two parts, 1109 and 7779, that added together give a palindrome (8888).

The spelling of 11097779 in words is "eleven million, ninety-seven thousand, seven hundred seventy-nine".