686085032 has 32 divisors (see below), whose sum is σ = 1344142080. Its totient is φ = 327687360.

The previous prime is 686085019. The next prime is 686085047. The reversal of 686085032 is 230580686.

It is a super-2 number, since 2×686085032² = 941425342268882048, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165578 + ... + 169670.

It is an arithmetic number, because the mean of its divisors is an integer number (42004440).

Almost surely, 2^686085032 is an apocalyptic number.

It is an amenable number.

686085032 is a deficient number, since it is larger than the sum of its proper divisors (658057048).

686085032 is a wasteful number, since it uses less digits than its factorization.

686085032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5033 (or 5029 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 686085032 is about 26193.2249255413. The cubic root of 686085032 is about 881.9811734232.

The spelling of 686085032 in words is "six hundred eighty-six million, eighty-five thousand, thirty-two".