1327994 has 4 divisors (see below), whose sum is σ = 1991994. Its totient is φ = 663996.

The previous prime is 1327987. The next prime is 1327999. The reversal of 1327994 is 4997231.

Added to its reverse (4997231) it gives a square (6325225 = 2515²).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4997231 = 31 ⋅161201.

It can be written as a sum of positive squares in only one way, i.e., 1129969 + 198025 = 1063^2 + 445^2 .

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 as a sum of consecutive naturals, namely, 331997 + ... + 332000.

2^1327994 is an apocalyptic number.

1327994 is a deficient number, since it is larger than the sum of its proper divisors (664000).

1327994 is an equidigital number, since it uses as much as digits as its factorization.

1327994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663999.

The product of its digits is 13608, while the sum is 35.

The square root of 1327994 is about 1152.3862199801. The cubic root of 1327994 is about 109.9171276636.

Adding to 1327994 its reverse (4997231), we get a square (6325225 = 2515²).

The spelling of 1327994 in words is "one million, three hundred twenty-seven thousand, nine hundred ninety-four".