327979745 has 4 divisors (see below), whose sum is σ = 393575700. Its totient is φ = 262383792.

The previous prime is 327979739. The next prime is 327979831. The reversal of 327979745 is 547979723.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 547979723 = 563 ⋅973321.

It can be written as a sum of positive squares in 2 ways, for example, as 63234304 + 264745441 = 7952^2 + 16271^2 .

It is a cyclic number.

It is not a de Polignac number, because 327979745 - 2⁶ = 327979681 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32797970 + ... + 32797979.

It is an arithmetic number, because the mean of its divisors is an integer number (98393925).

Almost surely, 2^327979745 is an apocalyptic number.

It is an amenable number.

327979745 is a deficient number, since it is larger than the sum of its proper divisors (65595955).

327979745 is an equidigital number, since it uses as much as digits as its factorization.

327979745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65595954.

The product of its digits is 3333960, while the sum is 53.

The square root of 327979745 is about 18110.2110700014. The cubic root of 327979745 is about 689.6292519225.

The spelling of 327979745 in words is "three hundred twenty-seven million, nine hundred seventy-nine thousand, seven hundred forty-five".