687016303 has 4 divisors (see below), whose sum is σ = 688078800. Its totient is φ = 685953808.

The previous prime is 687016271. The next prime is 687016321. The reversal of 687016303 is 303610786.

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

It is a cyclic number.

It is not a de Polignac number, because 687016303 - 2⁵ = 687016271 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 (687016373) 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, 530278 + ... + 531571.

It is an arithmetic number, because the mean of its divisors is an integer number (172019700).

Almost surely, 2^687016303 is an apocalyptic number.

687016303 is a deficient number, since it is larger than the sum of its proper divisors (1062497).

687016303 is a wasteful number, since it uses less digits than its factorization.

687016303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062496.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 687016303 is about 26210.9958414403. The cubic root of 687016303 is about 882.3800511617.

The spelling of 687016303 in words is "six hundred eighty-seven million, sixteen thousand, three hundred three".