682778 has 8 divisors (see below), whose sum is σ = 1068768. Its totient is φ = 326524.

The previous prime is 682777. The next prime is 682789. The reversal of 682778 is 877286.

682778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (682777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7376 + ... + 7467.

It is an arithmetic number, because the mean of its divisors is an integer number (133596).

2⁶⁸²⁷⁷⁸ is an apocalyptic number.

682778 is a deficient number, since it is larger than the sum of its proper divisors (385990).

682778 is a wasteful number, since it uses less digits than its factorization.

682778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14868.

The product of its digits is 37632, while the sum is 38.

The square root of 682778 is about 826.3038182170. The cubic root of 682778 is about 88.0561796917.

The spelling of 682778 in words is "six hundred eighty-two thousand, seven hundred seventy-eight".