687228316 has 48 divisors (see below), whose sum is σ = 1292687424. Its totient is φ = 318928896.

The previous prime is 687228299. The next prime is 687228319. The reversal of 687228316 is 613822786.

687228316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687228319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472246 + ... + 473698.

It is an arithmetic number, because the mean of its divisors is an integer number (26930988).

Almost surely, 2^687228316 is an apocalyptic number.

It is an amenable number.

687228316 is a deficient number, since it is larger than the sum of its proper divisors (605459108).

687228316 is a wasteful number, since it uses less digits than its factorization.

687228316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630 (or 1628 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 687228316 is about 26215.0398817168. The cubic root of 687228316 is about 882.4708092221.

The spelling of 687228316 in words is "six hundred eighty-seven million, two hundred twenty-eight thousand, three hundred sixteen".