688077282 has 8 divisors (see below), whose sum is σ = 1376154576. Its totient is φ = 229359092.

The previous prime is 688077263. The next prime is 688077283. The reversal of 688077282 is 282770886.

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

688077282 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (688077283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57339768 + ... + 57339779.

It is an arithmetic number, because the mean of its divisors is an integer number (172019322).

Almost surely, 2^688077282 is an apocalyptic number.

688077282 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.

688077282 is a wasteful number, since it uses less digits than its factorization.

688077282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114679552.

The product of its (nonzero) digits is 602112, while the sum is 48.

The square root of 688077282 is about 26231.2272301545. The cubic root of 688077282 is about 882.8340458178.

The spelling of 688077282 in words is "six hundred eighty-eight million, seventy-seven thousand, two hundred eighty-two".