1333993 has 2 divisors, whose sum is σ = 1333994. Its totient is φ = 1333992.

The previous prime is 1333991. The next prime is 1333999. The reversal of 1333993 is 3993331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1327104 + 6889 = 1152^2 + 83^2 .

It is a cyclic number.

It is not a de Polignac number, because 1333993 - 2¹ = 1333991 is a prime.

Together with 1333991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1333991) 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 as a sum of consecutive naturals, namely, 666996 + 666997.

It is an arithmetic number, because the mean of its divisors is an integer number (666997).

2^1333993 is an apocalyptic number.

It is an amenable number.

1333993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1333993 is an equidigital number, since it uses as much as digits as its factorization.

1333993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6561, while the sum is 31.

The square root of 1333993 is about 1154.9861471031. The cubic root of 1333993 is about 110.0823900650.

The spelling of 1333993 in words is "one million, three hundred thirty-three thousand, nine hundred ninety-three".