11640719 has 2 divisors, whose sum is σ = 11640720. Its totient is φ = 11640718.

The previous prime is 11640689. The next prime is 11640721. The reversal of 11640719 is 91704611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11640719 - 2⁸ = 11640463 is a prime.

It is a super-2 number, since 2×11640719² = 271012677673922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 11640721, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11640691 and 11640700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11640119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5820359 + 5820360.

It is an arithmetic number, because the mean of its divisors is an integer number (5820360).

Almost surely, 2^11640719 is an apocalyptic number.

11640719 is a deficient number, since it is larger than the sum of its proper divisors (1).

11640719 is an equidigital number, since it uses as much as digits as its factorization.

11640719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 11640719 is about 3411.8497915354. The cubic root of 11640719 is about 226.6348025662.

The spelling of 11640719 in words is "eleven million, six hundred forty thousand, seven hundred nineteen".