686573796 has 48 divisors (see below), whose sum is σ = 1633020480. Its totient is φ = 224446080.

The previous prime is 686573777. The next prime is 686573801. The reversal of 686573796 is 697375686.

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 15 ways as a sum of consecutive naturals, for example, 393486 + ... + 395226.

It is an arithmetic number, because the mean of its divisors is an integer number (34021260).

Almost surely, 2^686573796 is an apocalyptic number.

It is an amenable number.

686573796 is an abundant number, since it is smaller than the sum of its proper divisors (946446684).

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

686573796 is a wasteful number, since it uses less digits than its factorization.

686573796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364 (or 2362 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 57.

The square root of 686573796 is about 26202.5532343701. The cubic root of 686573796 is about 882.1905635619.

The spelling of 686573796 in words is "six hundred eighty-six million, five hundred seventy-three thousand, seven hundred ninety-six".