688439114 has 8 divisors (see below), whose sum is σ = 1126536768. Its totient is φ = 312926860.

The previous prime is 688439113. The next prime is 688439117. The reversal of 688439114 is 411934886.

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

It is not an unprimeable number, because it can be changed into a prime (688439113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15646322 + ... + 15646365.

It is an arithmetic number, because the mean of its divisors is an integer number (140817096).

Almost surely, 2^688439114 is an apocalyptic number.

688439114 is a deficient number, since it is larger than the sum of its proper divisors (438097654).

688439114 is a wasteful number, since it uses less digits than its factorization.

688439114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31292700.

The product of its digits is 165888, while the sum is 44.

The square root of 688439114 is about 26238.1232941687. The cubic root of 688439114 is about 882.9887676008.

The spelling of 688439114 in words is "six hundred eighty-eight million, four hundred thirty-nine thousand, one hundred fourteen".