688484886 has 8 divisors (see below), whose sum is σ = 1376969784. Its totient is φ = 229494960.

The previous prime is 688484873. The next prime is 688484897.

688484886 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

688484886 is an admirable number.

It is a super-2 number, since 2×688484886² = 948022876500865992, which contains 22 as substring.

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, 57373735 + ... + 57373746.

It is an arithmetic number, because the mean of its divisors is an integer number (172121223).

Almost surely, 2^688484886 is an apocalyptic number.

688484886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

688484886 is a wasteful number, since it uses less digits than its factorization.

688484886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114747486.

The product of its digits is 18874368, while the sum is 60.

The square root of 688484886 is about 26238.9955219326. The cubic root of 688484886 is about 883.0083361511.

The spelling of 688484886 in words is "six hundred eighty-eight million, four hundred eighty-four thousand, eight hundred eighty-six".