688495713 has 8 divisors (see below), whose sum is σ = 918120768. Its totient is φ = 458933904.

The previous prime is 688495681. The next prime is 688495727. The reversal of 688495713 is 317594886.

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

It is not a de Polignac number, because 688495713 - 2⁵ = 688495681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (688495793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23695 + ... + 44027.

It is an arithmetic number, because the mean of its divisors is an integer number (114765096).

Almost surely, 2^688495713 is an apocalyptic number.

It is an amenable number.

688495713 is a deficient number, since it is larger than the sum of its proper divisors (229625055).

688495713 is a wasteful number, since it uses less digits than its factorization.

688495713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31623.

The product of its digits is 1451520, while the sum is 51.

The square root of 688495713 is about 26239.2018361840. The cubic root of 688495713 is about 883.0129648081.

The spelling of 688495713 in words is "six hundred eighty-eight million, four hundred ninety-five thousand, seven hundred thirteen".