679776 has 48 divisors (see below), whose sum is σ = 1827504. Its totient is φ = 221184.

The previous prime is 679753. The next prime is 679781. The reversal of 679776 is 677976.

679776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

679776 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6960 + ... + 7056.

It is an arithmetic number, because the mean of its divisors is an integer number (38073).

2⁶⁷⁹⁷⁷⁶ 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 679776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (913752).

679776 is an abundant number, since it is smaller than the sum of its proper divisors (1147728).

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

679776 is a wasteful number, since it uses less digits than its factorization.

679776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 175 counting only the distinct ones).

The product of its digits is 111132, while the sum is 42.

The square root of 679776 is about 824.4852939865. The cubic root of 679776 is about 87.9269365999.

The spelling of 679776 in words is "six hundred seventy-nine thousand, seven hundred seventy-six".