671604984 has 48 divisors (see below), whose sum is σ = 1831167000. Its totient is φ = 222362304.

The previous prime is 671604979. The next prime is 671605069. The reversal of 671604984 is 489406176.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20574 + ... + 42029.

Almost surely, 2^671604984 is an apocalyptic number.

It is an amenable number.

671604984 is an abundant number, since it is smaller than the sum of its proper divisors (1159562016).

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

671604984 is a wasteful number, since it uses less digits than its factorization.

671604984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62764 (or 62757 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 671604984 is about 25915.3426371329. The cubic root of 671604984 is about 875.7321693252.

The spelling of 671604984 in words is "six hundred seventy-one million, six hundred four thousand, nine hundred eighty-four".