1339689 has 8 divisors (see below), whose sum is σ = 1923712. Its totient is φ = 824400.

The previous prime is 1339687. The next prime is 1339691. The reversal of 1339689 is 9869331.

It is an interprime number because it is at equal distance from previous prime (1339687) and next prime (1339691).

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

It is not a de Polignac number, because 1339689 - 2¹ = 1339687 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 34351 = 1339689 / (1 + 3 + 3 + 9 + 6 + 8 + 9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1339687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17137 + ... + 17214.

It is an arithmetic number, because the mean of its divisors is an integer number (240464).

2^1339689 is an apocalyptic number.

It is an amenable number.

1339689 is a deficient number, since it is larger than the sum of its proper divisors (584023).

1339689 is a wasteful number, since it uses less digits than its factorization.

1339689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34367.

The product of its digits is 34992, while the sum is 39.

The square root of 1339689 is about 1157.4493509437. The cubic root of 1339689 is about 110.2388473969.

The spelling of 1339689 in words is "one million, three hundred thirty-nine thousand, six hundred eighty-nine".