671469648 has 40 divisors (see below), whose sum is σ = 1750557600. Its totient is φ = 221768064.

The previous prime is 671469647. The next prime is 671469653. The reversal of 671469648 is 846964176.

It is a self number, because there is not a number n which added to its sum of digits gives 671469648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671469647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58938 + ... + 69401.

It is an arithmetic number, because the mean of its divisors is an integer number (43763940).

Almost surely, 2^671469648 is an apocalyptic number.

It is an amenable number.

671469648 is an abundant number, since it is smaller than the sum of its proper divisors (1079087952).

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

671469648 is a wasteful number, since it uses less digits than its factorization.

671469648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128459 (or 128453 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 671469648 is about 25912.7313882578. The cubic root of 671469648 is about 875.6733420614.

The spelling of 671469648 in words is "six hundred seventy-one million, four hundred sixty-nine thousand, six hundred forty-eight".