328206507 has 4 divisors (see below), whose sum is σ = 437608680. Its totient is φ = 218804336.

The previous prime is 328206451. The next prime is 328206509. The reversal of 328206507 is 705602823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 705602823 = 3 ⋅235200941.

It is a cyclic number.

It is not a de Polignac number, because 328206507 - 2⁶ = 328206443 is a prime.

It is a super-2 number, since 2×328206507² = 215439022474282098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (328206509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54701082 + ... + 54701087.

It is an arithmetic number, because the mean of its divisors is an integer number (109402170).

Almost surely, 2^328206507 is an apocalyptic number.

328206507 is a deficient number, since it is larger than the sum of its proper divisors (109402173).

328206507 is a wasteful number, since it uses less digits than its factorization.

328206507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109402172.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 328206507 is about 18116.4705999817. The cubic root of 328206507 is about 689.7881496231.

The spelling of 328206507 in words is "three hundred twenty-eight million, two hundred six thousand, five hundred seven".