2866247 has 2 divisors, whose sum is σ = 2866248. Its totient is φ = 2866246.

The previous prime is 2866223. The next prime is 2866261. The reversal of 2866247 is 7426682.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2866247 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 (2866267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1433123 + 1433124.

It is an arithmetic number, because the mean of its divisors is an integer number (1433124).

2^2866247 is an apocalyptic number.

2866247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2866247 is an equidigital number, since it uses as much as digits as its factorization.

2866247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 2866247 is about 1692.9994093324. Note that the first 3 decimals coincide. The cubic root of 2866247 is about 142.0488987185.

It can be divided in two parts, 2866 and 247, that added together give a palindrome (3113).

The spelling of 2866247 in words is "two million, eight hundred sixty-six thousand, two hundred forty-seven".