687094684 has 12 divisors (see below), whose sum is σ = 1205027208. Its totient is φ = 342801200.

The previous prime is 687094637. The next prime is 687094691. The reversal of 687094684 is 486490786.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184462 + ... + 188149.

It is an arithmetic number, because the mean of its divisors is an integer number (100418934).

Almost surely, 2^687094684 is an apocalyptic number.

It is an amenable number.

687094684 is a deficient number, since it is larger than the sum of its proper divisors (517932524).

687094684 is a wasteful number, since it uses less digits than its factorization.

687094684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373076 (or 373074 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The square root of 687094684 is about 26212.4909918916. The cubic root of 687094684 is about 882.4136065036.

The spelling of 687094684 in words is "six hundred eighty-seven million, ninety-four thousand, six hundred eighty-four".