1327993 has 4 divisors (see below), whose sum is σ = 1330560. Its totient is φ = 1325428.

The previous prime is 1327987. The next prime is 1327999. The reversal of 1327993 is 3997231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1327987) and next prime (1327999).

It is a cyclic number.

It is not a de Polignac number, because 1327993 - 2⁹ = 1327481 is a prime.

It is a Duffinian number.

1327993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1327999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205 + ... + 1642.

It is an arithmetic number, because the mean of its divisors is an integer number (332640).

2^1327993 is an apocalyptic number.

It is an amenable number.

1327993 is a deficient number, since it is larger than the sum of its proper divisors (2567).

1327993 is an equidigital number, since it uses as much as digits as its factorization.

1327993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566.

The product of its digits is 10206, while the sum is 34.

The square root of 1327993 is about 1152.3857860977. The cubic root of 1327993 is about 109.9171000738.

The spelling of 1327993 in words is "one million, three hundred twenty-seven thousand, nine hundred ninety-three".