687225322 has 8 divisors (see below), whose sum is σ = 1178100576. Its totient is φ = 294525132.

The previous prime is 687225299. The next prime is 687225353. The reversal of 687225322 is 223522786.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 24543748 + ... + 24543775.

It is an arithmetic number, because the mean of its divisors is an integer number (147262572).

Almost surely, 2^687225322 is an apocalyptic number.

687225322 is a deficient number, since it is larger than the sum of its proper divisors (490875254).

687225322 is a wasteful number, since it uses less digits than its factorization.

687225322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49087532.

The product of its digits is 80640, while the sum is 37.

The square root of 687225322 is about 26214.9827770304. The cubic root of 687225322 is about 882.4695276870.

The spelling of 687225322 in words is "six hundred eighty-seven million, two hundred twenty-five thousand, three hundred twenty-two".