687472148 has 24 divisors (see below), whose sum is σ = 1323303744. Its totient is φ = 312484920.

The previous prime is 687472127. The next prime is 687472187. The reversal of 687472148 is 841274786.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59240 + ... + 69887.

It is an arithmetic number, because the mean of its divisors is an integer number (55137656).

Almost surely, 2^687472148 is an apocalyptic number.

It is an amenable number.

687472148 is a deficient number, since it is larger than the sum of its proper divisors (635831596).

687472148 is a wasteful number, since it uses less digits than its factorization.

687472148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129164 (or 129140 counting only the distinct ones).

The product of its digits is 602112, while the sum is 47.

The square root of 687472148 is about 26219.6900820738. The cubic root of 687472148 is about 882.5751652146.

The spelling of 687472148 in words is "six hundred eighty-seven million, four hundred seventy-two thousand, one hundred forty-eight".