11739709 has 2 divisors, whose sum is σ = 11739710. Its totient is φ = 11739708.

The previous prime is 11739697. The next prime is 11739713. The reversal of 11739709 is 90793711.

11739709 is digitally balanced in base 2 and base 3, because in such bases 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., 6996025 + 4743684 = 2645^2 + 2178^2 .

It is an emirp because it is prime and its reverse (90793711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11739709 - 2⁵ = 11739677 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11739799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5869854 + 5869855.

It is an arithmetic number, because the mean of its divisors is an integer number (5869855).

Almost surely, 2^11739709 is an apocalyptic number.

It is an amenable number.

11739709 is a deficient number, since it is larger than the sum of its proper divisors (1).

11739709 is an equidigital number, since it uses as much as digits as its factorization.

11739709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11907, while the sum is 37.

The square root of 11739709 is about 3426.3258747527. The cubic root of 11739709 is about 227.2754068969.

The spelling of 11739709 in words is "eleven million, seven hundred thirty-nine thousand, seven hundred nine".