686068922 has 16 divisors (see below), whose sum is σ = 1283038272. Its totient is φ = 267299520.

The previous prime is 686068907. The next prime is 686068927. The reversal of 686068922 is 229860686.

It is not an unprimeable number, because it can be changed into a prime (686068927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2227343 + ... + 2227650.

It is an arithmetic number, because the mean of its divisors is an integer number (80189892).

Almost surely, 2^686068922 is an apocalyptic number.

686068922 is a deficient number, since it is larger than the sum of its proper divisors (596969350).

686068922 is a wasteful number, since it uses less digits than its factorization.

686068922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455013.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 686068922 is about 26192.9174014656. The cubic root of 686068922 is about 881.9742700865.

The spelling of 686068922 in words is "six hundred eighty-six million, sixty-eight thousand, nine hundred twenty-two".