680872184 has 8 divisors (see below), whose sum is σ = 1276635360. Its totient is φ = 340436088.

The previous prime is 680872177. The next prime is 680872207. The reversal of 680872184 is 481278086.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 42554504 + ... + 42554519.

It is an arithmetic number, because the mean of its divisors is an integer number (159579420).

Almost surely, 2^680872184 is an apocalyptic number.

It is an amenable number.

680872184 is a deficient number, since it is larger than the sum of its proper divisors (595763176).

680872184 is a wasteful number, since it uses less digits than its factorization.

680872184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85109029 (or 85109025 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 680872184 is about 26093.5276265974. The cubic root of 680872184 is about 879.7417389517.

The spelling of 680872184 in words is "six hundred eighty million, eight hundred seventy-two thousand, one hundred eighty-four".