328281597 has 24 divisors (see below), whose sum is σ = 544013184. Its totient is φ = 186866784.

The previous prime is 328281593. The next prime is 328281617. The reversal of 328281597 is 795182823.

It is a happy number.

328281597 is a `hidden beast` number, since 32 + 8 + 28 + 1 + 597 = 666.

It is not a de Polignac number, because 328281597 - 2² = 328281593 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328281593) 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 23 ways as a sum of consecutive naturals, for example, 6663 + ... + 26475.

It is an arithmetic number, because the mean of its divisors is an integer number (22667216).

Almost surely, 2^328281597 is an apocalyptic number.

It is an amenable number.

328281597 is a deficient number, since it is larger than the sum of its proper divisors (215731587).

328281597 is a wasteful number, since it uses less digits than its factorization.

328281597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20089 (or 20086 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 328281597 is about 18118.5429049910. The cubic root of 328281597 is about 689.8407508985.

The spelling of 328281597 in words is "three hundred twenty-eight million, two hundred eighty-one thousand, five hundred ninety-seven".