11721763 has 2 divisors, whose sum is σ = 11721764. Its totient is φ = 11721762.

The previous prime is 11721733. The next prime is 11721767. The reversal of 11721763 is 36712711.

11721763 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 a de Polignac number, because none of the positive numbers 2^k-11721763 is a prime.

It is not a weakly prime, because it can be changed into another prime (11721767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5860881 + 5860882.

It is an arithmetic number, because the mean of its divisors is an integer number (5860882).

Almost surely, 2^11721763 is an apocalyptic number.

11721763 is a deficient number, since it is larger than the sum of its proper divisors (1).

11721763 is an equidigital number, since it uses as much as digits as its factorization.

11721763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 28.

The square root of 11721763 is about 3423.7060329415. The cubic root of 11721763 is about 227.1595390469.

The spelling of 11721763 in words is "eleven million, seven hundred twenty-one thousand, seven hundred sixty-three".