1389223 has 24 divisors (see below), whose sum is σ = 1768320. Its totient is φ = 1077120.

The previous prime is 1389221. The next prime is 1389229. The reversal of 1389223 is 3229831.

It is not a de Polignac number, because 1389223 - 2¹ = 1389221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1389191 and 1389200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60390 + ... + 60412.

It is an arithmetic number, because the mean of its divisors is an integer number (73680).

2^1389223 is an apocalyptic number.

1389223 is a deficient number, since it is larger than the sum of its proper divisors (379097).

1389223 is a wasteful number, since it uses less digits than its factorization.

1389223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 70 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 1389223 is about 1178.6530447931. The cubic root of 1389223 is about 111.5811042292.

The spelling of 1389223 in words is "one million, three hundred eighty-nine thousand, two hundred twenty-three".