1388587 has 2 divisors, whose sum is σ = 1388588. Its totient is φ = 1388586.

The previous prime is 1388483. The next prime is 1388593. The reversal of 1388587 is 7858831.

It is a strong prime.

It is an emirp because it is prime and its reverse (7858831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1388587 - 2¹⁵ = 1355819 is a prime.

It is a Chen prime.

1388587 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1388287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694293 + 694294.

It is an arithmetic number, because the mean of its divisors is an integer number (694294).

2^1388587 is an apocalyptic number.

1388587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388587 is an equidigital number, since it uses as much as digits as its factorization.

1388587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 40.

The square root of 1388587 is about 1178.3832144086. The cubic root of 1388587 is about 111.5640739865.

The spelling of 1388587 in words is "one million, three hundred eighty-eight thousand, five hundred eighty-seven".