688000222 has 32 divisors (see below), whose sum is σ = 1337011200. Its totient is φ = 257849568.

The previous prime is 688000189. The next prime is 688000231. The reversal of 688000222 is 222000886.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96022 + ... + 102937.

It is an arithmetic number, because the mean of its divisors is an integer number (41781600).

Almost surely, 2^688000222 is an apocalyptic number.

688000222 is a deficient number, since it is larger than the sum of its proper divisors (649010978).

688000222 is a wasteful number, since it uses less digits than its factorization.

688000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199000.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 688000222 is about 26229.7583290430. The cubic root of 688000222 is about 882.8010874408.

The spelling of 688000222 in words is "six hundred eighty-eight million, two hundred twenty-two", and thus it is an aban number.