328774417 has 4 divisors (see below), whose sum is σ = 330185700. Its totient is φ = 327363136.

The previous prime is 328774393. The next prime is 328774451. The reversal of 328774417 is 714477823.

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 176597521 + 152176896 = 13289^2 + 12336^2 .

It is not a de Polignac number, because 328774417 - 2⁷ = 328774289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328774487) by changing a digit.

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, 705292 + ... + 705757.

It is an arithmetic number, because the mean of its divisors is an integer number (82546425).

Almost surely, 2^328774417 is an apocalyptic number.

It is an amenable number.

328774417 is a deficient number, since it is larger than the sum of its proper divisors (1411283).

328774417 is a wasteful number, since it uses less digits than its factorization.

328774417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411282.

The product of its digits is 263424, while the sum is 43.

The square root of 328774417 is about 18132.1376842335. The cubic root of 328774417 is about 690.1857771836.

The spelling of 328774417 in words is "three hundred twenty-eight million, seven hundred seventy-four thousand, four hundred seventeen".