687076424 has 32 divisors (see below), whose sum is σ = 1364368320. Its totient is φ = 323691456.

The previous prime is 687076391. The next prime is 687076427. The reversal of 687076424 is 424670786.

687076424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (687076427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15539 + ... + 40194.

It is an arithmetic number, because the mean of its divisors is an integer number (42636510).

Almost surely, 2^687076424 is an apocalyptic number.

It is an amenable number.

687076424 is a deficient number, since it is larger than the sum of its proper divisors (677291896).

687076424 is a wasteful number, since it uses less digits than its factorization.

687076424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55829 (or 55825 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 44.

The square root of 687076424 is about 26212.1426823524. The cubic root of 687076424 is about 882.4057895241.

The spelling of 687076424 in words is "six hundred eighty-seven million, seventy-six thousand, four hundred twenty-four".