1327220947 has 4 divisors (see below), whose sum is σ = 1429314880. Its totient is φ = 1225127016.

The previous prime is 1327220933. The next prime is 1327220971. The reversal of 1327220947 is 7490227231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1327220947 - 2¹¹ = 1327218899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1327220347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51046947 + ... + 51046972.

It is an arithmetic number, because the mean of its divisors is an integer number (357328720).

Almost surely, 2^1327220947 is an apocalyptic number.

1327220947 is a deficient number, since it is larger than the sum of its proper divisors (102093933).

1327220947 is a wasteful number, since it uses less digits than its factorization.

1327220947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102093932.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 1327220947 is about 36431.0437264704. The cubic root of 1327220947 is about 1098.9579517296.

The spelling of 1327220947 in words is "one billion, three hundred twenty-seven million, two hundred twenty thousand, nine hundred forty-seven".