2866189 has 2 divisors, whose sum is σ = 2866190. Its totient is φ = 2866188.

The previous prime is 2866163. The next prime is 2866211. The reversal of 2866189 is 9816682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1525225 + 1340964 = 1235^2 + 1158^2 .

It is a cyclic number.

It is not a de Polignac number, because 2866189 - 2¹⁵ = 2833421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2866109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1433094 + 1433095.

It is an arithmetic number, because the mean of its divisors is an integer number (1433095).

2^2866189 is an apocalyptic number.

It is an amenable number.

2866189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2866189 is an equidigital number, since it uses as much as digits as its factorization.

2866189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 40.

The square root of 2866189 is about 1692.9822798836. The cubic root of 2866189 is about 142.0479405676.

The spelling of 2866189 in words is "two million, eight hundred sixty-six thousand, one hundred eighty-nine".