2287388639 has 2 divisors, whose sum is σ = 2287388640. Its totient is φ = 2287388638.

The previous prime is 2287388633. The next prime is 2287388651. The reversal of 2287388639 is 9368837822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2287388639 - 2¹² = 2287384543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2287388633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1143694319 + 1143694320.

It is an arithmetic number, because the mean of its divisors is an integer number (1143694320).

Almost surely, 2^2287388639 is an apocalyptic number.

2287388639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2287388639 is an equidigital number, since it uses as much as digits as its factorization.

2287388639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6967296, while the sum is 56.

The square root of 2287388639 is about 47826.6519735597. The cubic root of 2287388639 is about 1317.5890793084.

The spelling of 2287388639 in words is "two billion, two hundred eighty-seven million, three hundred eighty-eight thousand, six hundred thirty-nine".