687414020 has 24 divisors (see below), whose sum is σ = 1445278464. Its totient is φ = 274640096.

The previous prime is 687414019. The next prime is 687414031. The reversal of 687414020 is 20414786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2654 + ... + 37173.

It is an arithmetic number, because the mean of its divisors is an integer number (60219936).

Almost surely, 2^687414020 is an apocalyptic number.

It is an amenable number.

687414020 is an abundant number, since it is smaller than the sum of its proper divisors (757864444).

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

687414020 is a wasteful number, since it uses less digits than its factorization.

687414020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40699 (or 40697 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 687414020 is about 26218.5815787201. The cubic root of 687414020 is about 882.5502896492.

The spelling of 687414020 in words is "six hundred eighty-seven million, four hundred fourteen thousand, twenty".