11963569 has 2 divisors, whose sum is σ = 11963570. Its totient is φ = 11963568.

The previous prime is 11963561. The next prime is 11963599. The reversal of 11963569 is 96536911.

11963569 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 can be written as a sum of positive squares in only one way, i.e., 10368400 + 1595169 = 3220^2 + 1263^2 .

It is a cyclic number.

It is not a de Polignac number, because 11963569 - 2³ = 11963561 is a prime.

It is a super-2 number, since 2×11963569² = 286253966435522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11963561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5981784 + 5981785.

It is an arithmetic number, because the mean of its divisors is an integer number (5981785).

Almost surely, 2^11963569 is an apocalyptic number.

It is an amenable number.

11963569 is a deficient number, since it is larger than the sum of its proper divisors (1).

11963569 is an equidigital number, since it uses as much as digits as its factorization.

11963569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 40.

The square root of 11963569 is about 3458.8392561667. The cubic root of 11963569 is about 228.7109298537.

The spelling of 11963569 in words is "eleven million, nine hundred sixty-three thousand, five hundred sixty-nine".