1389027 has 8 divisors (see below), whose sum is σ = 1865920. Its totient is φ = 919080.

The previous prime is 1389007. The next prime is 1389083. The reversal of 1389027 is 7209831.

It is a happy number.

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

It is not a de Polignac number, because 1389027 - 2⁶ = 1388963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1388985 and 1389003.

It is not an unprimeable number, because it can be changed into a prime (1389007) 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 7 ways as a sum of consecutive naturals, for example, 1249 + ... + 2082.

It is an arithmetic number, because the mean of its divisors is an integer number (233240).

2^1389027 is an apocalyptic number.

1389027 is a deficient number, since it is larger than the sum of its proper divisors (476893).

1389027 is a wasteful number, since it uses less digits than its factorization.

1389027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3473.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1389027 is about 1178.5698961029. The cubic root of 1389027 is about 111.5758564696.

The spelling of 1389027 in words is "one million, three hundred eighty-nine thousand, twenty-seven".