686472848 has 10 divisors (see below), whose sum is σ = 1330041174. Its totient is φ = 343236416.

The previous prime is 686472841. The next prime is 686472851. The reversal of 686472848 is 848274686.

686472848 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 only one way, i.e., 620408464 + 66064384 = 24908^2 + 8128^2 .

It is a super-2 number, since 2×686472848² = 942489942082462208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 686472848.

It is not an unprimeable number, because it can be changed into a prime (686472841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21452261 + ... + 21452292.

Almost surely, 2^686472848 is an apocalyptic number.

It is an amenable number.

686472848 is a deficient number, since it is larger than the sum of its proper divisors (643568326).

686472848 is a wasteful number, since it uses less digits than its factorization.

686472848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42904561 (or 42904555 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 53.

The square root of 686472848 is about 26200.6268627298. The cubic root of 686472848 is about 882.1473248314.

The spelling of 686472848 in words is "six hundred eighty-six million, four hundred seventy-two thousand, eight hundred forty-eight".