328287953 has 4 divisors (see below), whose sum is σ = 375186240. Its totient is φ = 281389668.

The previous prime is 328287907. The next prime is 328287961. The reversal of 328287953 is 359782823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 328287953 - 2¹⁸ = 328025809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 328287898 and 328287907.

It is not an unprimeable number, because it can be changed into a prime (328287853) 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 3 ways as a sum of consecutive naturals, for example, 23449133 + ... + 23449146.

It is an arithmetic number, because the mean of its divisors is an integer number (93796560).

Almost surely, 2^328287953 is an apocalyptic number.

It is an amenable number.

328287953 is a deficient number, since it is larger than the sum of its proper divisors (46898287).

328287953 is an equidigital number, since it uses as much as digits as its factorization.

328287953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46898286.

The product of its digits is 725760, while the sum is 47.

The square root of 328287953 is about 18118.7183045601. The cubic root of 328287953 is about 689.8452029700.

The spelling of 328287953 in words is "three hundred twenty-eight million, two hundred eighty-seven thousand, nine hundred fifty-three".