11811607 has 2 divisors, whose sum is σ = 11811608. Its totient is φ = 11811606.

The previous prime is 11811601. The next prime is 11811629. The reversal of 11811607 is 70611811.

11811607 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (70611811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11811607 - 2³ = 11811599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11811601) 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, 5905803 + 5905804.

It is an arithmetic number, because the mean of its divisors is an integer number (5905804).

Almost surely, 2^11811607 is an apocalyptic number.

11811607 is a deficient number, since it is larger than the sum of its proper divisors (1).

11811607 is an equidigital number, since it uses as much as digits as its factorization.

11811607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 25.

The square root of 11811607 is about 3436.8018563775. The cubic root of 11811607 is about 227.7384337536.

The spelling of 11811607 in words is "eleven million, eight hundred eleven thousand, six hundred seven".