688746848 has 12 divisors (see below), whose sum is σ = 1355970420. Its totient is φ = 344373408.

The previous prime is 688746847. The next prime is 688746859. The reversal of 688746848 is 848647886.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688746841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10761638 + ... + 10761701.

It is an arithmetic number, because the mean of its divisors is an integer number (112997535).

Almost surely, 2^688746848 is an apocalyptic number.

It is an amenable number.

688746848 is a deficient number, since it is larger than the sum of its proper divisors (667223572).

688746848 is a wasteful number, since it uses less digits than its factorization.

688746848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21523349 (or 21523341 counting only the distinct ones).

The product of its digits is 16515072, while the sum is 59.

The square root of 688746848 is about 26243.9868922388. The cubic root of 688746848 is about 883.1203140623.

It can be divided in two parts, 6887 and 46848, that added together give a palindrome (53735).

The spelling of 688746848 in words is "six hundred eighty-eight million, seven hundred forty-six thousand, eight hundred forty-eight".