688048386 has 16 divisors (see below), whose sum is σ = 1377624864. Its totient is φ = 229094784.

The previous prime is 688048373. The next prime is 688048391. The reversal of 688048386 is 683840886.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57775 + ... + 68658.

It is an arithmetic number, because the mean of its divisors is an integer number (86101554).

Almost surely, 2^688048386 is an apocalyptic number.

688048386 is an abundant number, since it is smaller than the sum of its proper divisors (689576478).

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

688048386 is a wasteful number, since it uses less digits than its factorization.

688048386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127345.

The product of its (nonzero) digits is 1769472, while the sum is 51.

The square root of 688048386 is about 26230.6764304697. The cubic root of 688048386 is about 882.8216873564.

The spelling of 688048386 in words is "six hundred eighty-eight million, forty-eight thousand, three hundred eighty-six".