1389028603 has 2 divisors, whose sum is σ = 1389028604. Its totient is φ = 1389028602.

The previous prime is 1389028601. The next prime is 1389028609. The reversal of 1389028603 is 3068209831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1389028603 - 2¹ = 1389028601 is a prime.

Together with 1389028601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1389028601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694514301 + 694514302.

It is an arithmetic number, because the mean of its divisors is an integer number (694514302).

Almost surely, 2^1389028603 is an apocalyptic number.

1389028603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389028603 is an equidigital number, since it uses as much as digits as its factorization.

1389028603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1389028603 is about 37269.6740393581. The cubic root of 1389028603 is about 1115.7589939077.

The spelling of 1389028603 in words is "one billion, three hundred eighty-nine million, twenty-eight thousand, six hundred three".