682909285 has 8 divisors (see below), whose sum is σ = 826743960. Its totient is φ = 541492224.

The previous prime is 682909207. The next prime is 682909289. The reversal of 682909285 is 582909286.

682909285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5764801 + 677144484 = 2401^2 + 26022^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-682909285 is a prime.

It is a super-2 number, since 2×682909285² = 932730183078422450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682909289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603780 + ... + 604909.

It is an arithmetic number, because the mean of its divisors is an integer number (103342995).

Almost surely, 2^682909285 is an apocalyptic number.

It is an amenable number.

682909285 is a deficient number, since it is larger than the sum of its proper divisors (143834675).

682909285 is a wasteful number, since it uses less digits than its factorization.

682909285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208807.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 682909285 is about 26132.5330766078. The cubic root of 682909285 is about 880.6182316324.

Subtracting from 682909285 its reverse (582909286), we obtain a palindrome (99999999).

The spelling of 682909285 in words is "six hundred eighty-two million, nine hundred nine thousand, two hundred eighty-five".