328088491 has 16 divisors (see below), whose sum is σ = 363446784. Its totient is φ = 294585984.

The previous prime is 328088489. The next prime is 328088503. The reversal of 328088491 is 194880823.

It is a cyclic number.

It is not a de Polignac number, because 328088491 - 2¹ = 328088489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328088401) 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 15 ways as a sum of consecutive naturals, for example, 189556 + ... + 191278.

It is an arithmetic number, because the mean of its divisors is an integer number (22715424).

Almost surely, 2^328088491 is an apocalyptic number.

328088491 is a deficient number, since it is larger than the sum of its proper divisors (35358293).

328088491 is a wasteful number, since it uses less digits than its factorization.

328088491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 328088491 is about 18113.2131605632. The cubic root of 328088491 is about 689.7054620512.

The spelling of 328088491 in words is "three hundred twenty-eight million, eighty-eight thousand, four hundred ninety-one".