1389330667 has 2 divisors, whose sum is σ = 1389330668. Its totient is φ = 1389330666.

The previous prime is 1389330659. The next prime is 1389330707. The reversal of 1389330667 is 7660339831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1389330667 - 2³ = 1389330659 is a prime.

It is not a weakly prime, because it can be changed into another prime (1389330647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694665333 + 694665334.

It is an arithmetic number, because the mean of its divisors is an integer number (694665334).

Almost surely, 2^1389330667 is an apocalyptic number.

1389330667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389330667 is an equidigital number, since it uses as much as digits as its factorization.

1389330667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 1389330667 is about 37273.7262290745. The cubic root of 1389330667 is about 1115.8398672596.

The spelling of 1389330667 in words is "one billion, three hundred eighty-nine million, three hundred thirty thousand, six hundred sixty-seven".