1389085 has 16 divisors (see below), whose sum is σ = 1783296. Its totient is φ = 1036288.

The previous prime is 1389083. The next prime is 1389097. The reversal of 1389085 is 5809831.

It is not a de Polignac number, because 1389085 - 2¹ = 1389083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1389085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389083) 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, 5277 + ... + 5533.

It is an arithmetic number, because the mean of its divisors is an integer number (111456).

2^1389085 is an apocalyptic number.

It is an amenable number.

1389085 is a deficient number, since it is larger than the sum of its proper divisors (394211).

1389085 is a wasteful number, since it uses less digits than its factorization.

1389085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1389085 is about 1178.5945019386. The cubic root of 1389085 is about 111.5774094295.

It can be divided in two parts, 13 and 89085, that added together give a palindrome (89098).

The spelling of 1389085 in words is "one million, three hundred eighty-nine thousand, eighty-five".