687670276 has 24 divisors (see below), whose sum is σ = 1233296064. Its totient is φ = 335324640.

The previous prime is 687670259. The next prime is 687670279. The reversal of 687670276 is 672076786.

It is not an unprimeable number, because it can be changed into a prime (687670279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125106 + ... + 130486.

It is an arithmetic number, because the mean of its divisors is an integer number (51387336).

Almost surely, 2^687670276 is an apocalyptic number.

It is an amenable number.

687670276 is a deficient number, since it is larger than the sum of its proper divisors (545625788).

687670276 is a wasteful number, since it uses less digits than its factorization.

687670276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6171 (or 6169 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 49.

The square root of 687670276 is about 26223.4680391439. The cubic root of 687670276 is about 882.6599424947.

The spelling of 687670276 in words is "six hundred eighty-seven million, six hundred seventy thousand, two hundred seventy-six".