682813728 has 36 divisors (see below), whose sum is σ = 1941752358. Its totient is φ = 227604480.

The previous prime is 682813709. The next prime is 682813739. The reversal of 682813728 is 827318286.

It can be written as a sum of positive squares in only one way, i.e., 599858064 + 82955664 = 24492^2 + 9108^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1185153 + ... + 1185728.

Almost surely, 2^682813728 is an apocalyptic number.

It is an amenable number.

682813728 is an abundant number, since it is smaller than the sum of its proper divisors (1258938630).

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

682813728 is a wasteful number, since it uses less digits than its factorization.

682813728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370897 (or 2370886 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 682813728 is about 26130.7046977306. The cubic root of 682813728 is about 880.5771558197.

The spelling of 682813728 in words is "six hundred eighty-two million, eight hundred thirteen thousand, seven hundred twenty-eight".