687987303 has 8 divisors (see below), whose sum is σ = 922944768. Its totient is φ = 455844024.

The previous prime is 687987239. The next prime is 687987317. The reversal of 687987303 is 303789786.

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

It is not a de Polignac number, because 687987303 - 2⁶ = 687987239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687987343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702975 + ... + 703952.

It is an arithmetic number, because the mean of its divisors is an integer number (115368096).

Almost surely, 2^687987303 is an apocalyptic number.

687987303 is a deficient number, since it is larger than the sum of its proper divisors (234957465).

687987303 is a wasteful number, since it uses less digits than its factorization.

687987303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407093.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 687987303 is about 26229.5120617979. The cubic root of 687987303 is about 882.7955617747.

The spelling of 687987303 in words is "six hundred eighty-seven million, nine hundred eighty-seven thousand, three hundred three".