1333889 has 2 divisors, whose sum is σ = 1333890. Its totient is φ = 1333888.

The previous prime is 1333883. The next prime is 1333901. The reversal of 1333889 is 9883331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 693889 + 640000 = 833^2 + 800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1333889 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1333883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666944 + 666945.

It is an arithmetic number, because the mean of its divisors is an integer number (666945).

2^1333889 is an apocalyptic number.

It is an amenable number.

1333889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1333889 is an equidigital number, since it uses as much as digits as its factorization.

1333889 is an evil number, because the sum of its binary digits is even.

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

The square root of 1333889 is about 1154.9411240405. The cubic root of 1333889 is about 110.0795292639.

It can be divided in two parts, 1333 and 889, that added together give a palindrome (2222).

The spelling of 1333889 in words is "one million, three hundred thirty-three thousand, eight hundred eighty-nine".