1166284687 has 2 divisors, whose sum is σ = 1166284688. Its totient is φ = 1166284686.

The previous prime is 1166284597. The next prime is 1166284781. The reversal of 1166284687 is 7864826611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1166284687 - 2¹¹ = 1166282639 is a prime.

It is a super-2 number, since 2×1166284687² = 2720439942261375938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1166284687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166284487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583142343 + 583142344.

It is an arithmetic number, because the mean of its divisors is an integer number (583142344).

Almost surely, 2^1166284687 is an apocalyptic number.

1166284687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166284687 is an equidigital number, since it uses as much as digits as its factorization.

1166284687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 49.

The square root of 1166284687 is about 34150.9104856664. The cubic root of 1166284687 is about 1052.6116955952.

The spelling of 1166284687 in words is "one billion, one hundred sixty-six million, two hundred eighty-four thousand, six hundred eighty-seven".