688134682 has 8 divisors (see below), whose sum is σ = 1032314400. Its totient is φ = 344029884.

The previous prime is 688134679. The next prime is 688134701. The reversal of 688134682 is 286431886.

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

It is a super-2 number, since 2×688134682² = 947058681142482248, which contains 22 as substring.

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, 21619 + ... + 42937.

It is an arithmetic number, because the mean of its divisors is an integer number (129039300).

Almost surely, 2^688134682 is an apocalyptic number.

688134682 is a deficient number, since it is larger than the sum of its proper divisors (344179718).

688134682 is a wasteful number, since it uses less digits than its factorization.

688134682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37460.

The product of its digits is 442368, while the sum is 46.

The square root of 688134682 is about 26232.3213231311. The cubic root of 688134682 is about 882.8585940610.

The spelling of 688134682 in words is "six hundred eighty-eight million, one hundred thirty-four thousand, six hundred eighty-two".