686029953 has 16 divisors (see below), whose sum is σ = 1046953856. Its totient is φ = 391426560.

The previous prime is 686029921. The next prime is 686029961. The reversal of 686029953 is 359920686.

686029953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 686029953 - 2⁵ = 686029921 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (686029963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10138 + ... + 38403.

It is an arithmetic number, because the mean of its divisors is an integer number (65434616).

Almost surely, 2^686029953 is an apocalyptic number.

It is an amenable number.

686029953 is a deficient number, since it is larger than the sum of its proper divisors (360923903).

686029953 is a wasteful number, since it uses less digits than its factorization.

686029953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49224.

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 686029953 is about 26192.1735066031. The cubic root of 686029953 is about 881.9575709352.

The spelling of 686029953 in words is "six hundred eighty-six million, twenty-nine thousand, nine hundred fifty-three".