679917888 has 392 divisors, whose sum is σ = 2332024800. Its totient is φ = 194835456.

The previous prime is 679917863. The next prime is 679917893. The reversal of 679917888 is 888719976.

Its product of digits (12192768) is a multiple of the sum of its prime divisors (96).

It is a congruent number.

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 55 ways as a sum of consecutive naturals, for example, 11524003 + ... + 11524061.

Almost surely, 2^679917888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679917888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1166012400).

679917888 is an abundant number, since it is smaller than the sum of its proper divisors (1652106912).

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

679917888 is a wasteful number, since it uses less digits than its factorization.

679917888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 96 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 63.

The square root of 679917888 is about 26075.2351475495. The cubic root of 679917888 is about 879.3305376659.

The spelling of 679917888 in words is "six hundred seventy-nine million, nine hundred seventeen thousand, eight hundred eighty-eight".