328487505 has 8 divisors (see below), whose sum is σ = 525580032. Its totient is φ = 175193328.

The previous prime is 328487473. The next prime is 328487507. The reversal of 328487505 is 505784823.

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

It is not a de Polignac number, because 328487505 - 2⁵ = 328487473 is a prime.

It is a super-2 number, since 2×328487505² = 215808081882250050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (328487507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10949569 + ... + 10949598.

It is an arithmetic number, because the mean of its divisors is an integer number (65697504).

Almost surely, 2^328487505 is an apocalyptic number.

It is an amenable number.

328487505 is a deficient number, since it is larger than the sum of its proper divisors (197092527).

328487505 is a wasteful number, since it uses less digits than its factorization.

328487505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21899175.

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 328487505 is about 18124.2242592614. The cubic root of 328487505 is about 689.9849503124.

The spelling of 328487505 in words is "three hundred twenty-eight million, four hundred eighty-seven thousand, five hundred five".