1389833 has 2 divisors, whose sum is σ = 1389834. Its totient is φ = 1389832.

The previous prime is 1389811. The next prime is 1389841. The reversal of 1389833 is 3389831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 984064 + 405769 = 992^2 + 637^2 .

It is a cyclic number.

It is not a de Polignac number, because 1389833 - 2⁶ = 1389769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1389793 and 1389802.

It is not a weakly prime, because it can be changed into another prime (1389853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694916 + 694917.

It is an arithmetic number, because the mean of its divisors is an integer number (694917).

2^1389833 is an apocalyptic number.

It is an amenable number.

1389833 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389833 is an equidigital number, since it uses as much as digits as its factorization.

1389833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 1389833 is about 1178.9117863521. The cubic root of 1389833 is about 111.5974333844.

It can be divided in two parts, 13898 and 33, that added together give a palindrome (13931).

The spelling of 1389833 in words is "one million, three hundred eighty-nine thousand, eight hundred thirty-three".