328509001 has 8 divisors (see below), whose sum is σ = 330776000. Its totient is φ = 326248560.

The previous prime is 328508959. The next prime is 328509019. The reversal of 328509001 is 100905823.

It is a Cunningham number, because it is equal to 690³+1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-328509001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328509101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136315 + ... + 138703.

It is an arithmetic number, because the mean of its divisors is an integer number (41347000).

Almost surely, 2^328509001 is an apocalyptic number.

It is an amenable number.

328509001 is a deficient number, since it is larger than the sum of its proper divisors (2266999).

328509001 is a wasteful number, since it uses less digits than its factorization.

328509001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 328509001 is about 18124.8172680444. The cubic root of 328509001 is about 690.0000007001. Note that the first 6 decimals are identical.

The spelling of 328509001 in words is "three hundred twenty-eight million, five hundred nine thousand, one".