1389004733 has 2 divisors, whose sum is σ = 1389004734. Its totient is φ = 1389004732.

The previous prime is 1389004697. The next prime is 1389004769. The reversal of 1389004733 is 3374009831.

It is a balanced prime because it is at equal distance from previous prime (1389004697) and next prime (1389004769).

It can be written as a sum of positive squares in only one way, i.e., 1152398809 + 236605924 = 33947^2 + 15382^2 .

It is a cyclic number.

It is not a de Polignac number, because 1389004733 - 2²⁸ = 1120569277 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1389004333) by changing a digit.

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, 694502366 + 694502367.

It is an arithmetic number, because the mean of its divisors is an integer number (694502367).

Almost surely, 2^1389004733 is an apocalyptic number.

It is an amenable number.

1389004733 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389004733 is an equidigital number, since it uses as much as digits as its factorization.

1389004733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 1389004733 is about 37269.3538044329. The cubic root of 1389004733 is about 1115.7526025539.

The spelling of 1389004733 in words is "one billion, three hundred eighty-nine million, four thousand, seven hundred thirty-three".