11440997 has 2 divisors, whose sum is σ = 11440998. Its totient is φ = 11440996.

The previous prime is 11440991. The next prime is 11441041. The reversal of 11440997 is 79904411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11383876 + 57121 = 3374^2 + 239^2 .

It is an emirp because it is prime and its reverse (79904411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11440997 - 2⁴ = 11440981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11440991) 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 as a sum of consecutive naturals, namely, 5720498 + 5720499.

It is an arithmetic number, because the mean of its divisors is an integer number (5720499).

Almost surely, 2^11440997 is an apocalyptic number.

It is an amenable number.

11440997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11440997 is an equidigital number, since it uses as much as digits as its factorization.

11440997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 11440997 is about 3382.4542864612. The cubic root of 11440997 is about 225.3311797837.

The spelling of 11440997 in words is "eleven million, four hundred forty thousand, nine hundred ninety-seven".