1389341679 has 16 divisors (see below), whose sum is σ = 2025681024. Its totient is φ = 840016800.

The previous prime is 1389341671. The next prime is 1389341687. The reversal of 1389341679 is 9761439831.

It is an interprime number because it is at equal distance from previous prime (1389341671) and next prime (1389341687).

It is not a de Polignac number, because 1389341679 - 2³ = 1389341671 is a prime.

1389341679 is a modest number, since divided by 41679 gives 13893 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389341671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36109 + ... + 63894.

It is an arithmetic number, because the mean of its divisors is an integer number (126605064).

Almost surely, 2^1389341679 is an apocalyptic number.

1389341679 is a deficient number, since it is larger than the sum of its proper divisors (636339345).

1389341679 is a wasteful number, since it uses less digits than its factorization.

1389341679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100438.

The product of its digits is 979776, while the sum is 51.

The square root of 1389341679 is about 37273.8739467740. The cubic root of 1389341679 is about 1115.8428153450.

The spelling of 1389341679 in words is "one billion, three hundred eighty-nine million, three hundred forty-one thousand, six hundred seventy-nine".