687424322 has 16 divisors (see below), whose sum is σ = 1158736320. Its totient is φ = 303478032.

The previous prime is 687424321. The next prime is 687424357. The reversal of 687424322 is 223424786.

It is not an unprimeable number, because it can be changed into a prime (687424321) by changing a digit.

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, 574172 + ... + 575367.

It is an arithmetic number, because the mean of its divisors is an integer number (72421020).

Almost surely, 2^687424322 is an apocalyptic number.

687424322 is a deficient number, since it is larger than the sum of its proper divisors (471311998).

687424322 is a wasteful number, since it uses less digits than its factorization.

687424322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149577.

The product of its digits is 129024, while the sum is 38.

The square root of 687424322 is about 26218.7780417013. The cubic root of 687424322 is about 882.5546984370.

The spelling of 687424322 in words is "six hundred eighty-seven million, four hundred twenty-four thousand, three hundred twenty-two".