2287664389 has 2 divisors, whose sum is σ = 2287664390. Its totient is φ = 2287664388.

The previous prime is 2287664377. The next prime is 2287664411. The reversal of 2287664389 is 9834667822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2264141889 + 23522500 = 47583^2 + 4850^2 .

It is a cyclic number.

It is not a de Polignac number, because 2287664389 - 2⁹ = 2287663877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2287664339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1143832194 + 1143832195.

It is an arithmetic number, because the mean of its divisors is an integer number (1143832195).

Almost surely, 2^2287664389 is an apocalyptic number.

It is an amenable number.

2287664389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2287664389 is an equidigital number, since it uses as much as digits as its factorization.

2287664389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6967296, while the sum is 55.

The square root of 2287664389 is about 47829.5346935343. The cubic root of 2287664389 is about 1317.6420233197.

The spelling of 2287664389 in words is "two billion, two hundred eighty-seven million, six hundred sixty-four thousand, three hundred eighty-nine".