11660647 has 2 divisors, whose sum is σ = 11660648. Its totient is φ = 11660646.

The previous prime is 11660641. The next prime is 11660651. The reversal of 11660647 is 74606611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11660647 - 2¹¹ = 11658599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11660641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5830323 + 5830324.

It is an arithmetic number, because the mean of its divisors is an integer number (5830324).

Almost surely, 2^11660647 is an apocalyptic number.

11660647 is a deficient number, since it is larger than the sum of its proper divisors (1).

11660647 is an equidigital number, since it uses as much as digits as its factorization.

11660647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 11660647 is about 3414.7689526526. The cubic root of 11660647 is about 226.7640558528.

The spelling of 11660647 in words is "eleven million, six hundred sixty thousand, six hundred forty-seven".