679851648 has 96 divisors (see below), whose sum is σ = 2235848160. Its totient is φ = 194241024.

The previous prime is 679851637. The next prime is 679851671. The reversal of 679851648 is 846158976.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 679851594 and 679851603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34090 + ... + 50217.

It is an arithmetic number, because the mean of its divisors is an integer number (23290085).

Almost surely, 2^679851648 is an apocalyptic number.

It is an amenable number.

679851648 is an abundant number, since it is smaller than the sum of its proper divisors (1555996512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679851648 is a wasteful number, since it uses less digits than its factorization.

679851648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84334 (or 84319 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 679851648 is about 26073.9649458996. The cubic root of 679851648 is about 879.3019809105.

The spelling of 679851648 in words is "six hundred seventy-nine million, eight hundred fifty-one thousand, six hundred forty-eight".