676768 has 12 divisors (see below), whose sum is σ = 1332450. Its totient is φ = 338368.

The previous prime is 676763. The next prime is 676771. The reversal of 676768 is 867676.

It can be written as a sum of positive squares in only one way, i.e., 659344 + 17424 = 812^2 + 132^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 676768.

It is not an unprimeable number, because it can be changed into a prime (676763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10543 + ... + 10606.

2⁶⁷⁶⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

676768 is a deficient number, since it is larger than the sum of its proper divisors (655682).

676768 is a wasteful number, since it uses less digits than its factorization.

676768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21159 (or 21151 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 676768 is about 822.6591031527. The cubic root of 676768 is about 87.7970529813.

It can be divided in two parts, 676 and 768, that added together give a square (1444 = 38²).

The spelling of 676768 in words is "six hundred seventy-six thousand, seven hundred sixty-eight".