646083875 has 16 divisors (see below), whose sum is σ = 813727200. Its totient is φ = 512114400.

The previous prime is 646083871. The next prime is 646083913. The reversal of 646083875 is 578380646.

It is not a de Polignac number, because 646083875 - 2² = 646083871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (646083871) 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, 10085 + ... + 37334.

It is an arithmetic number, because the mean of its divisors is an integer number (50857950).

Almost surely, 2^646083875 is an apocalyptic number.

646083875 is a deficient number, since it is larger than the sum of its proper divisors (167643325).

646083875 is a wasteful number, since it uses less digits than its factorization.

646083875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47543 (or 47533 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 646083875 is about 25418.1800095916. The cubic root of 646083875 is about 864.4959585901.

The spelling of 646083875 in words is "six hundred forty-six million, eighty-three thousand, eight hundred seventy-five".