2280989 has 2 divisors, whose sum is σ = 2280990. Its totient is φ = 2280988.

The previous prime is 2280983. The next prime is 2281001. The reversal of 2280989 is 9890822.

2280989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1776889 + 504100 = 1333^2 + 710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2280989 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2280983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140494 + 1140495.

It is an arithmetic number, because the mean of its divisors is an integer number (1140495).

2^2280989 is an apocalyptic number.

It is an amenable number.

2280989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2280989 is an equidigital number, since it uses as much as digits as its factorization.

2280989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 2280989 is about 1510.2943421731. The cubic root of 2280989 is about 131.6359151242.

The spelling of 2280989 in words is "two million, two hundred eighty thousand, nine hundred eighty-nine".