1389219 has 16 divisors (see below), whose sum is σ = 2016000. Its totient is φ = 845856.

The previous prime is 1389217. The next prime is 1389221. The reversal of 1389219 is 9129831.

It is an interprime number because it is at equal distance from previous prime (1389217) and next prime (1389221).

It is not a de Polignac number, because 1389219 - 2¹ = 1389217 is a prime.

It is a super-2 number, since 2×1389219² = 3859858859922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1389219.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389211) 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, 6882 + ... + 7080.

It is an arithmetic number, because the mean of its divisors is an integer number (126000).

2^1389219 is an apocalyptic number.

1389219 is a deficient number, since it is larger than the sum of its proper divisors (626781).

1389219 is a wasteful number, since it uses less digits than its factorization.

1389219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394.

The product of its digits is 3888, while the sum is 33.

The square root of 1389219 is about 1178.6513479397. The cubic root of 1389219 is about 111.5809971370.

The spelling of 1389219 in words is "one million, three hundred eighty-nine thousand, two hundred nineteen".