328112657 has 4 divisors (see below), whose sum is σ = 328431936. Its totient is φ = 327793380.

The previous prime is 328112647. The next prime is 328112663. The reversal of 328112657 is 756211823.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 328112657 - 2¹⁰ = 328111633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328112647) 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, 158093 + ... + 160154.

It is an arithmetic number, because the mean of its divisors is an integer number (82107984).

Almost surely, 2^328112657 is an apocalyptic number.

It is an amenable number.

328112657 is a deficient number, since it is larger than the sum of its proper divisors (319279).

328112657 is a wasteful number, since it uses less digits than its factorization.

328112657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319278.

The product of its digits is 20160, while the sum is 35.

The square root of 328112657 is about 18113.8802303648. The cubic root of 328112657 is about 689.7223955040.

The spelling of 328112657 in words is "three hundred twenty-eight million, one hundred twelve thousand, six hundred fifty-seven".