328812065 has 16 divisors (see below), whose sum is σ = 399513600. Its totient is φ = 259771200.

The previous prime is 328812059. The next prime is 328812067. The reversal of 328812065 is 560218823.

It is not a de Polignac number, because 328812065 - 2²⁶ = 261703201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (328812067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301952 + ... + 303038.

It is an arithmetic number, because the mean of its divisors is an integer number (24969600).

Almost surely, 2^328812065 is an apocalyptic number.

It is an amenable number.

328812065 is a deficient number, since it is larger than the sum of its proper divisors (70701535).

328812065 is a wasteful number, since it uses less digits than its factorization.

328812065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 328812065 is about 18133.1758112031. The cubic root of 328812065 is about 690.2121205983.

The spelling of 328812065 in words is "three hundred twenty-eight million, eight hundred twelve thousand, sixty-five".