671487884 has 6 divisors (see below), whose sum is σ = 1175103804. Its totient is φ = 335743940.

The previous prime is 671487853. The next prime is 671487917. The reversal of 671487884 is 488784176.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 83935982 + ... + 83935989.

It is an arithmetic number, because the mean of its divisors is an integer number (195850634).

Almost surely, 2^671487884 is an apocalyptic number.

It is an amenable number.

671487884 is a deficient number, since it is larger than the sum of its proper divisors (503615920).

671487884 is a wasteful number, since it uses less digits than its factorization.

671487884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167871975 (or 167871973 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 53.

The square root of 671487884 is about 25913.0832592341. The cubic root of 671487884 is about 875.6812692673.

The spelling of 671487884 in words is "six hundred seventy-one million, four hundred eighty-seven thousand, eight hundred eighty-four".