327780973 has 4 divisors (see below), whose sum is σ = 352994908. Its totient is φ = 302567040.

The previous prime is 327780953. The next prime is 327780979. The reversal of 327780973 is 379087723.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15976009 + 311804964 = 3997^2 + 17658^2 .

It is a cyclic number.

It is not a de Polignac number, because 327780973 - 2⁵ = 327780941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327780979) 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, 12606948 + ... + 12606973.

It is an arithmetic number, because the mean of its divisors is an integer number (88248727).

Almost surely, 2^327780973 is an apocalyptic number.

It is an amenable number.

327780973 is a deficient number, since it is larger than the sum of its proper divisors (25213935).

327780973 is a wasteful number, since it uses less digits than its factorization.

327780973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25213934.

The product of its (nonzero) digits is 444528, while the sum is 46.

The square root of 327780973 is about 18104.7223949996. The cubic root of 327780973 is about 689.4899072533.

The spelling of 327780973 in words is "three hundred twenty-seven million, seven hundred eighty thousand, nine hundred seventy-three".