687670000 has 50 divisors (see below), whose sum is σ = 1664942048. Its totient is φ = 275064000.

The previous prime is 687669979. The next prime is 687670033. The reversal of 687670000 is 76786.

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 24384 + ... + 44383.

Almost surely, 2^687670000 is an apocalyptic number.

It is an amenable number.

687670000 is an abundant number, since it is smaller than the sum of its proper divisors (977272048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

687670000 is an equidigital number, since it uses as much as digits as its factorization.

687670000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68795 (or 68774 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 687670000 is about 26223.4627766815. The cubic root of 687670000 is about 882.6598244080.

The spelling of 687670000 in words is "six hundred eighty-seven million, six hundred seventy thousand".