328612031 has 8 divisors (see below), whose sum is σ = 365250384. Its totient is φ = 293101120.

The previous prime is 328612013. The next prime is 328612051. The reversal of 328612031 is 130216823.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328612031 is a prime.

It is a super-2 number, since 2×328612031² = 215971733835889922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328612051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281246 + ... + 282411.

It is an arithmetic number, because the mean of its divisors is an integer number (45656298).

Almost surely, 2^328612031 is an apocalyptic number.

328612031 is a deficient number, since it is larger than the sum of its proper divisors (36638353).

328612031 is a wasteful number, since it uses less digits than its factorization.

328612031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563721.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 328612031 is about 18127.6592807786. The cubic root of 328612031 is about 690.0721278657.

Adding to 328612031 its reverse (130216823), we get a palindrome (458828854).

The spelling of 328612031 in words is "three hundred twenty-eight million, six hundred twelve thousand, thirty-one".