686201098 has 16 divisors (see below), whose sum is σ = 1123593120. Its totient is φ = 311710000.

The previous prime is 686201063. The next prime is 686201099. The reversal of 686201098 is 890102686.

It is a self number, because there is not a number n which added to its sum of digits gives 686201098.

It is not an unprimeable number, because it can be changed into a prime (686201099) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28473 + ... + 46723.

It is an arithmetic number, because the mean of its divisors is an integer number (70224570).

Almost surely, 2^686201098 is an apocalyptic number.

686201098 is a deficient number, since it is larger than the sum of its proper divisors (437392022).

686201098 is a wasteful number, since it uses less digits than its factorization.

686201098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19973.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 686201098 is about 26195.4404047727. The cubic root of 686201098 is about 882.0309059636.

The spelling of 686201098 in words is "six hundred eighty-six million, two hundred one thousand, ninety-eight".