328985275 has 12 divisors (see below), whose sum is σ = 431938872. Its totient is φ = 247706240.

The previous prime is 328985273. The next prime is 328985281. The reversal of 328985275 is 572589823.

It is not a de Polignac number, because 328985275 - 2¹ = 328985273 is a prime.

It is a super-2 number, since 2×328985275² = 216462622333651250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328985273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 386617 + ... + 387466.

It is an arithmetic number, because the mean of its divisors is an integer number (35994906).

Almost surely, 2^328985275 is an apocalyptic number.

328985275 is a deficient number, since it is larger than the sum of its proper divisors (102953597).

328985275 is a wasteful number, since it uses less digits than its factorization.

328985275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774110 (or 774105 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 49.

The square root of 328985275 is about 18137.9512349107. The cubic root of 328985275 is about 690.3332948373. Note that the first 3 decimals are identical.

The spelling of 328985275 in words is "three hundred twenty-eight million, nine hundred eighty-five thousand, two hundred seventy-five".