1389333 has 8 divisors (see below), whose sum is σ = 2020896. Its totient is φ = 842000.

The previous prime is 1389329. The next prime is 1389347. The reversal of 1389333 is 3339831.

1389333 is nontrivially palindromic in base 4.

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

It is a cyclic number.

It is not a de Polignac number, because 1389333 - 2² = 1389329 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1389333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21018 + ... + 21083.

It is an arithmetic number, because the mean of its divisors is an integer number (252612).

2^1389333 is an apocalyptic number.

It is an amenable number.

1389333 is a deficient number, since it is larger than the sum of its proper divisors (631563).

1389333 is a wasteful number, since it uses less digits than its factorization.

1389333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42115.

The product of its digits is 5832, while the sum is 30.

The square root of 1389333 is about 1178.6997073046. The cubic root of 1389333 is about 111.5840491842.

The spelling of 1389333 in words is "one million, three hundred eighty-nine thousand, three hundred thirty-three".