328646605 has 16 divisors (see below), whose sum is σ = 451175040. Its totient is φ = 225127872.

The previous prime is 328646597. The next prime is 328646621. The reversal of 328646605 is 506646823.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 328646605 - 2³ = 328646597 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 34582 + ... + 43048.

It is an arithmetic number, because the mean of its divisors is an integer number (28198440).

Almost surely, 2^328646605 is an apocalyptic number.

328646605 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

328646605 is a deficient number, since it is larger than the sum of its proper divisors (122528435).

328646605 is a wasteful number, since it uses less digits than its factorization.

328646605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9588.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 328646605 is about 18128.6128812990. The cubic root of 328646605 is about 690.0963283563.

The spelling of 328646605 in words is "three hundred twenty-eight million, six hundred forty-six thousand, six hundred five".