2167289 has 2 divisors, whose sum is σ = 2167290. Its totient is φ = 2167288.

The previous prime is 2167261. The next prime is 2167327. The reversal of 2167289 is 9827612.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1283689 + 883600 = 1133^2 + 940^2 .

It is a cyclic number.

It is not a de Polignac number, because 2167289 - 2¹² = 2163193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2167259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1083644 + 1083645.

It is an arithmetic number, because the mean of its divisors is an integer number (1083645).

2^2167289 is an apocalyptic number.

It is an amenable number.

2167289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2167289 is an equidigital number, since it uses as much as digits as its factorization.

2167289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 2167289 is about 1472.1715253326. The cubic root of 2167289 is about 129.4113225435.

The spelling of 2167289 in words is "two million, one hundred sixty-seven thousand, two hundred eighty-nine".