11097791 has 4 divisors (see below), whose sum is σ = 11279784. Its totient is φ = 10915800.

The previous prime is 11097773. The next prime is 11097871. The reversal of 11097791 is 19779011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11097791 - 2¹⁴ = 11081407 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11097731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90905 + ... + 91026.

It is an arithmetic number, because the mean of its divisors is an integer number (2819946).

Almost surely, 2^11097791 is an apocalyptic number.

11097791 is a deficient number, since it is larger than the sum of its proper divisors (181993).

11097791 is an equidigital number, since it uses as much as digits as its factorization.

11097791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181992.

The product of its (nonzero) digits is 3969, while the sum is 35.

The square root of 11097791 is about 3331.3347174969. The cubic root of 11097791 is about 223.0551118252.

The spelling of 11097791 in words is "eleven million, ninety-seven thousand, seven hundred ninety-one".