2866666687 has 2 divisors, whose sum is σ = 2866666688. Its totient is φ = 2866666686.

The previous prime is 2866666679. The next prime is 2866666717. The reversal of 2866666687 is 7866666682.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2866666687 - 2³ = 2866666679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2866666637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1433333343 + 1433333344.

It is an arithmetic number, because the mean of its divisors is an integer number (1433333344).

Almost surely, 2^2866666687 is an apocalyptic number.

2866666687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2866666687 is an equidigital number, since it uses as much as digits as its factorization.

2866666687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41803776, while the sum is 61.

The square root of 2866666687 is about 53541.2615372481. The cubic root of 2866666687 is about 1420.5583149702.

The spelling of 2866666687 in words is "two billion, eight hundred sixty-six million, six hundred sixty-six thousand, six hundred eighty-seven".