687853448 has 16 divisors (see below), whose sum is σ = 1290024960. Its totient is φ = 343846800.

The previous prime is 687853429. The next prime is 687853477. The reversal of 687853448 is 844358786.

It is a self number, because there is not a number n which added to its sum of digits gives 687853448.

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, 43313 + ... + 57023.

It is an arithmetic number, because the mean of its divisors is an integer number (80626560).

Almost surely, 2^687853448 is an apocalyptic number.

It is an amenable number.

687853448 is a deficient number, since it is larger than the sum of its proper divisors (602171512).

687853448 is a wasteful number, since it uses less digits than its factorization.

687853448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19988 (or 19984 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 53.

The square root of 687853448 is about 26226.9603271138. The cubic root of 687853448 is about 882.7383057450.

The spelling of 687853448 in words is "six hundred eighty-seven million, eight hundred fifty-three thousand, four hundred forty-eight".