11969761 has 2 divisors, whose sum is σ = 11969762. Its totient is φ = 11969760.

The previous prime is 11969723. The next prime is 11969773. The reversal of 11969761 is 16796911.

11969761 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 can be written as a sum of positive squares in only one way, i.e., 11833600 + 136161 = 3440^2 + 369^2 .

It is an emirp because it is prime and its reverse (16796911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11969761 - 2¹³ = 11961569 is a prime.

It is not a weakly prime, because it can be changed into another prime (11969701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5984880 + 5984881.

It is an arithmetic number, because the mean of its divisors is an integer number (5984881).

Almost surely, 2^11969761 is an apocalyptic number.

It is an amenable number.

11969761 is a deficient number, since it is larger than the sum of its proper divisors (1).

11969761 is an equidigital number, since it uses as much as digits as its factorization.

11969761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 40.

The square root of 11969761 is about 3459.7342383484. The cubic root of 11969761 is about 228.7503811195.

The spelling of 11969761 in words is "eleven million, nine hundred sixty-nine thousand, seven hundred sixty-one".