328664895 has 32 divisors (see below), whose sum is σ = 581633472. Its totient is φ = 157427712.

The previous prime is 328664837. The next prime is 328664929. The reversal of 328664895 is 598466823.

It is not a de Polignac number, because 328664895 - 2¹⁰ = 328663871 is a prime.

It is a super-2 number, since 2×328664895² = 216041226410722050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 15562 + ... + 29991.

It is an arithmetic number, because the mean of its divisors is an integer number (18176046).

Almost surely, 2^328664895 is an apocalyptic number.

328664895 is a deficient number, since it is larger than the sum of its proper divisors (252968577).

328664895 is a wasteful number, since it uses less digits than its factorization.

328664895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45611.

The product of its digits is 2488320, while the sum is 51.

The square root of 328664895 is about 18129.1173254519. The cubic root of 328664895 is about 690.1091299771.

The spelling of 328664895 in words is "three hundred twenty-eight million, six hundred sixty-four thousand, eight hundred ninety-five".