11701649 has 2 divisors, whose sum is σ = 11701650. Its totient is φ = 11701648.

The previous prime is 11701639. The next prime is 11701673. The reversal of 11701649 is 94610711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6927424 + 4774225 = 2632^2 + 2185^2 .

It is a cyclic number.

It is not a de Polignac number, because 11701649 - 2²⁰ = 10653073 is a prime.

It is not a weakly prime, because it can be changed into another prime (11701609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5850824 + 5850825.

It is an arithmetic number, because the mean of its divisors is an integer number (5850825).

Almost surely, 2^11701649 is an apocalyptic number.

It is an amenable number.

11701649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11701649 is an equidigital number, since it uses as much as digits as its factorization.

11701649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 11701649 is about 3420.7673115838. The cubic root of 11701649 is about 227.0295329233.

The spelling of 11701649 in words is "eleven million, seven hundred one thousand, six hundred forty-nine".