687473148 has 24 divisors (see below), whose sum is σ = 1608658128. Its totient is φ = 228507136.

The previous prime is 687473099. The next prime is 687473167. The reversal of 687473148 is 841374786.

687473148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 687473097 and 687473106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76911 + ... + 85382.

It is an arithmetic number, because the mean of its divisors is an integer number (67027422).

Almost surely, 2^687473148 is an apocalyptic number.

It is an amenable number.

687473148 is an abundant number, since it is smaller than the sum of its proper divisors (921184980).

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

687473148 is a wasteful number, since it uses less digits than its factorization.

687473148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162653 (or 162651 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 687473148 is about 26219.7091517049. The cubic root of 687473148 is about 882.5755931469.

The spelling of 687473148 in words is "six hundred eighty-seven million, four hundred seventy-three thousand, one hundred forty-eight".