686575356 has 36 divisors (see below), whose sum is σ = 1633808232. Its totient is φ = 224324256.

The previous prime is 686575343. The next prime is 686575361. The reversal of 686575356 is 653575686.

It is a junction number, because it is equal to n+sod(n) for n = 686575299 and 686575308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 660285 + ... + 661323.

It is an arithmetic number, because the mean of its divisors is an integer number (45383562).

Almost surely, 2^686575356 is an apocalyptic number.

It is an amenable number.

686575356 is an abundant number, since it is smaller than the sum of its proper divisors (947232876).

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

686575356 is a wasteful number, since it uses less digits than its factorization.

686575356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138 (or 1097 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 51.

The square root of 686575356 is about 26202.5830024446. The cubic root of 686575356 is about 882.1912317184.

The spelling of 686575356 in words is "six hundred eighty-six million, five hundred seventy-five thousand, three hundred fifty-six".