1389283 has 4 divisors (see below), whose sum is σ = 1587760. Its totient is φ = 1190808.

The previous prime is 1389281. The next prime is 1389301. The reversal of 1389283 is 3829831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1389283 - 2¹ = 1389281 is a prime.

It is a Duffinian number.

1389283 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1389281) 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 3 ways as a sum of consecutive naturals, for example, 99228 + ... + 99241.

It is an arithmetic number, because the mean of its divisors is an integer number (396940).

2^1389283 is an apocalyptic number.

1389283 is a deficient number, since it is larger than the sum of its proper divisors (198477).

1389283 is an equidigital number, since it uses as much as digits as its factorization.

1389283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198476.

The product of its digits is 10368, while the sum is 34.

The square root of 1389283 is about 1178.6784973011. The cubic root of 1389283 is about 111.5827105875.

The spelling of 1389283 in words is "one million, three hundred eighty-nine thousand, two hundred eighty-three".