687072848 has 100 divisors (see below), whose sum is σ = 1677496800. Its totient is φ = 267051840.

The previous prime is 687072847. The next prime is 687072857. The reversal of 687072848 is 848270786.

687072848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×687072848² = 944138196917662208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 687072796 and 687072805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687072847) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1639583 + ... + 1640001.

It is an arithmetic number, because the mean of its divisors is an integer number (16774968).

Almost surely, 2^687072848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 687072848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (838748400).

687072848 is an abundant number, since it is smaller than the sum of its proper divisors (990423952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

687072848 is an equidigital number, since it uses as much as digits as its factorization.

687072848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 50.

The square root of 687072848 is about 26212.0744696027. The cubic root of 687072848 is about 882.4042586470.

The spelling of 687072848 in words is "six hundred eighty-seven million, seventy-two thousand, eight hundred forty-eight".