1389327047 has 2 divisors, whose sum is σ = 1389327048. Its totient is φ = 1389327046.

The previous prime is 1389326999. The next prime is 1389327053. The reversal of 1389327047 is 7407239831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1389327047 - 2¹⁰ = 1389326023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1389326989 and 1389327007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1389327347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694663523 + 694663524.

It is an arithmetic number, because the mean of its divisors is an integer number (694663524).

Almost surely, 2^1389327047 is an apocalyptic number.

1389327047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389327047 is an equidigital number, since it uses as much as digits as its factorization.

1389327047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 1389327047 is about 37273.6776693688. The cubic root of 1389327047 is about 1115.8388981253.

The spelling of 1389327047 in words is "one billion, three hundred eighty-nine million, three hundred twenty-seven thousand, forty-seven".