11487709 has 2 divisors, whose sum is σ = 11487710. Its totient is φ = 11487708.

The previous prime is 11487691. The next prime is 11487737. The reversal of 11487709 is 90778411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8236900 + 3250809 = 2870^2 + 1803^2 .

It is a cyclic number.

It is not a de Polignac number, because 11487709 - 2⁹ = 11487197 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 (11487739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5743854 + 5743855.

It is an arithmetic number, because the mean of its divisors is an integer number (5743855).

Almost surely, 2^11487709 is an apocalyptic number.

It is an amenable number.

11487709 is a deficient number, since it is larger than the sum of its proper divisors (1).

11487709 is an equidigital number, since it uses as much as digits as its factorization.

11487709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 11487709 is about 3389.3522980062. The cubic root of 11487709 is about 225.6374286629.

The spelling of 11487709 in words is "eleven million, four hundred eighty-seven thousand, seven hundred nine".