1389327026 has 4 divisors (see below), whose sum is σ = 2083990542. Its totient is φ = 694663512.

The previous prime is 1389326999. The next prime is 1389327047. The reversal of 1389327026 is 6207239831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6207239831 = 13 ⋅477479987.

It can be written as a sum of positive squares in only one way, i.e., 894309025 + 495018001 = 29905^2 + 22249^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347331755 + ... + 347331758.

Almost surely, 2^1389327026 is an apocalyptic number.

1389327026 is a deficient number, since it is larger than the sum of its proper divisors (694663516).

1389327026 is an equidigital number, since it uses as much as digits as its factorization.

1389327026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694663515.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 1389327026 is about 37273.6773876686. The cubic root of 1389327026 is about 1115.8388925033.

The spelling of 1389327026 in words is "one billion, three hundred eighty-nine million, three hundred twenty-seven thousand, twenty-six".