2237789 has 2 divisors, whose sum is σ = 2237790. Its totient is φ = 2237788.

The previous prime is 2237783. The next prime is 2237813. The reversal of 2237789 is 9877322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2220100 + 17689 = 1490^2 + 133^2 .

It is a cyclic number.

It is not a de Polignac number, because 2237789 - 2⁴ = 2237773 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 10 and base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2237783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1118894 + 1118895.

It is an arithmetic number, because the mean of its divisors is an integer number (1118895).

2^2237789 is an apocalyptic number.

It is an amenable number.

2237789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2237789 is an equidigital number, since it uses as much as digits as its factorization.

2237789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The square root of 2237789 is about 1495.9241290921. The cubic root of 2237789 is about 130.7995886666.

The spelling of 2237789 in words is "two million, two hundred thirty-seven thousand, seven hundred eighty-nine".