1388577089 has 2 divisors, whose sum is σ = 1388577090. Its totient is φ = 1388577088.

The previous prime is 1388577059. The next prime is 1388577161. The reversal of 1388577089 is 9807758831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1169092864 + 219484225 = 34192^2 + 14815^2 .

It is a cyclic number.

It is not a de Polignac number, because 1388577089 - 2²⁴ = 1371799873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1388577059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694288544 + 694288545.

It is an arithmetic number, because the mean of its divisors is an integer number (694288545).

Almost surely, 2^1388577089 is an apocalyptic number.

It is an amenable number.

1388577089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388577089 is an equidigital number, since it uses as much as digits as its factorization.

1388577089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 56.

The square root of 1388577089 is about 37263.6161557088. The cubic root of 1388577089 is about 1115.6380855739.

The spelling of 1388577089 in words is "one billion, three hundred eighty-eight million, five hundred seventy-seven thousand, eighty-nine".