682187285 has 8 divisors (see below), whose sum is σ = 881595960. Its totient is φ = 503769024.

The previous prime is 682187279. The next prime is 682187293. The reversal of 682187285 is 582781286.

It can be written as a sum of positive squares in 4 ways, for example, as 4990756 + 677196529 = 2234^2 + 26023^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 682187285 - 2²⁴ = 665410069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5247530 + ... + 5247659.

It is an arithmetic number, because the mean of its divisors is an integer number (110199495).

Almost surely, 2^682187285 is an apocalyptic number.

682187285 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

682187285 is a deficient number, since it is larger than the sum of its proper divisors (199408675).

682187285 is a wasteful number, since it uses less digits than its factorization.

682187285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10495207.

The product of its digits is 430080, while the sum is 47.

The square root of 682187285 is about 26118.7152249110. The cubic root of 682187285 is about 880.3077801684.

The spelling of 682187285 in words is "six hundred eighty-two million, one hundred eighty-seven thousand, two hundred eighty-five".