11701609 has 2 divisors, whose sum is σ = 11701610. Its totient is φ = 11701608.

The previous prime is 11701579. The next prime is 11701639. The reversal of 11701609 is 90610711.

11701609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (11701579) and next prime (11701639).

It can be written as a sum of positive squares in only one way, i.e., 11594025 + 107584 = 3405^2 + 328^2 .

It is a cyclic number.

It is not a de Polignac number, because 11701609 - 2⁵ = 11701577 is a prime.

It is not a weakly prime, because it can be changed into another prime (11701639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5850804 + 5850805.

It is an arithmetic number, because the mean of its divisors is an integer number (5850805).

Almost surely, 2^11701609 is an apocalyptic number.

It is an amenable number.

11701609 is a deficient number, since it is larger than the sum of its proper divisors (1).

11701609 is an equidigital number, since it uses as much as digits as its factorization.

11701609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 11701609 is about 3420.7614649373. The cubic root of 11701609 is about 227.0292742363.

The spelling of 11701609 in words is "eleven million, seven hundred one thousand, six hundred nine".