1166947 has 2 divisors, whose sum is σ = 1166948. Its totient is φ = 1166946.

The previous prime is 1166929. The next prime is 1166953. The reversal of 1166947 is 7496611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1166947 - 2¹¹ = 1164899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1166927) 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, 583473 + 583474.

It is an arithmetic number, because the mean of its divisors is an integer number (583474).

2^1166947 is an apocalyptic number.

1166947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166947 is an equidigital number, since it uses as much as digits as its factorization.

1166947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 1166947 is about 1080.2532110575. The cubic root of 1166947 is about 105.2810911244.

The spelling of 1166947 in words is "one million, one hundred sixty-six thousand, nine hundred forty-seven".