686238268 has 12 divisors (see below), whose sum is σ = 1201535272. Its totient is φ = 342942480.

The previous prime is 686238251. The next prime is 686238299. The reversal of 686238268 is 862832686.

686238268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35223 + ... + 51118.

Almost surely, 2^686238268 is an apocalyptic number.

It is an amenable number.

686238268 is a deficient number, since it is larger than the sum of its proper divisors (515297004).

686238268 is a wasteful number, since it uses less digits than its factorization.

686238268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88332 (or 88330 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 49.

The square root of 686238268 is about 26196.1498697805. The cubic root of 686238268 is about 882.0468315657.

The spelling of 686238268 in words is "six hundred eighty-six million, two hundred thirty-eight thousand, two hundred sixty-eight".