1389603407 has 2 divisors, whose sum is σ = 1389603408. Its totient is φ = 1389603406.

The previous prime is 1389603401. The next prime is 1389603421. The reversal of 1389603407 is 7043069831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1389603407 - 2⁸ = 1389603151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1389603401) 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, 694801703 + 694801704.

It is an arithmetic number, because the mean of its divisors is an integer number (694801704).

Almost surely, 2^1389603407 is an apocalyptic number.

1389603407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389603407 is an equidigital number, since it uses as much as digits as its factorization.

1389603407 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1389603407 is about 37277.3846587982. The cubic root of 1389603407 is about 1115.9128794566.

The spelling of 1389603407 in words is "one billion, three hundred eighty-nine million, six hundred three thousand, four hundred seven".