11691907 has 2 divisors, whose sum is σ = 11691908. Its totient is φ = 11691906.

The previous prime is 11691877. The next prime is 11691917. The reversal of 11691907 is 70919611.

11691907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11691907 - 2¹¹ = 11689859 is a prime.

It is not a weakly prime, because it can be changed into another prime (11691917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5845953 + 5845954.

It is an arithmetic number, because the mean of its divisors is an integer number (5845954).

Almost surely, 2^11691907 is an apocalyptic number.

11691907 is a deficient number, since it is larger than the sum of its proper divisors (1).

11691907 is an equidigital number, since it uses as much as digits as its factorization.

11691907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 11691907 is about 3419.3430655610. The cubic root of 11691907 is about 226.9665122963.

The spelling of 11691907 in words is "eleven million, six hundred ninety-one thousand, nine hundred seven".