328860857 has 16 divisors (see below), whose sum is σ = 363854400. Its totient is φ = 295365312.

The previous prime is 328860827. The next prime is 328860887. The reversal of 328860857 is 758068823.

It is an interprime number because it is at equal distance from previous prime (328860827) and next prime (328860887).

It is a cyclic number.

It is not a de Polignac number, because 328860857 - 2¹² = 328856761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (328860817) 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 15 ways as a sum of consecutive naturals, for example, 70019 + ... + 74567.

It is an arithmetic number, because the mean of its divisors is an integer number (22740900).

Almost surely, 2^328860857 is an apocalyptic number.

It is an amenable number.

328860857 is a deficient number, since it is larger than the sum of its proper divisors (34993543).

328860857 is a wasteful number, since it uses less digits than its factorization.

328860857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4712.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 328860857 is about 18134.5211406312. The cubic root of 328860857 is about 690.2462588064.

The spelling of 328860857 in words is "three hundred twenty-eight million, eight hundred sixty thousand, eight hundred fifty-seven".