687228301 has 4 divisors (see below), whose sum is σ = 688281372. Its totient is φ = 686175232.

The previous prime is 687228299. The next prime is 687228319. The reversal of 687228301 is 103822786.

687228301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69705801 + 617522500 = 8349^2 + 24850^2 .

It is a cyclic number.

It is not a de Polignac number, because 687228301 - 2¹ = 687228299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687228001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525556 + ... + 526861.

It is an arithmetic number, because the mean of its divisors is an integer number (172070343).

Almost surely, 2^687228301 is an apocalyptic number.

It is an amenable number.

687228301 is a deficient number, since it is larger than the sum of its proper divisors (1053071).

687228301 is a wasteful number, since it uses less digits than its factorization.

687228301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053070.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 687228301 is about 26215.0395956214. The cubic root of 687228301 is about 882.4708028015.

The spelling of 687228301 in words is "six hundred eighty-seven million, two hundred twenty-eight thousand, three hundred one".