1389704659 has 8 divisors (see below), whose sum is σ = 1625169920. Its totient is φ = 1163473416.

The previous prime is 1389704653. The next prime is 1389704677. The reversal of 1389704659 is 9564079831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1389704659 - 2¹⁷ = 1389573587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1389704653) 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 in 7 ways as a sum of consecutive naturals, for example, 2308179 + ... + 2308780.

It is an arithmetic number, because the mean of its divisors is an integer number (203146240).

Almost surely, 2^1389704659 is an apocalyptic number.

1389704659 is a deficient number, since it is larger than the sum of its proper divisors (235465261).

1389704659 is an equidigital number, since it uses as much as digits as its factorization.

1389704659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4617009.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 1389704659 is about 37278.7427228977. The cubic root of 1389704659 is about 1115.9399820736.

The spelling of 1389704659 in words is "one billion, three hundred eighty-nine million, seven hundred four thousand, six hundred fifty-nine".