11769991 has 2 divisors, whose sum is σ = 11769992. Its totient is φ = 11769990.

The previous prime is 11769977. The next prime is 11770013. The reversal of 11769991 is 19996711.

It is a happy number.

11769991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11769991 - 2⁹ = 11769479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11769941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5884995 + 5884996.

It is an arithmetic number, because the mean of its divisors is an integer number (5884996).

Almost surely, 2^11769991 is an apocalyptic number.

11769991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11769991 is an equidigital number, since it uses as much as digits as its factorization.

11769991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618, while the sum is 43.

The square root of 11769991 is about 3430.7420480124. The cubic root of 11769991 is about 227.4706543479.

The spelling of 11769991 in words is "eleven million, seven hundred sixty-nine thousand, nine hundred ninety-one".