671855296 has 56 divisors (see below), whose sum is σ = 1576242720. Its totient is φ = 278003712.

The previous prime is 671855293. The next prime is 671855309. The reversal of 671855296 is 692558176.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (671855293) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 12865 + ... + 38848.

Almost surely, 2^671855296 is an apocalyptic number.

It is an amenable number.

671855296 is an abundant number, since it is smaller than the sum of its proper divisors (904387424).

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

671855296 is a wasteful number, since it uses less digits than its factorization.

671855296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51761 (or 51751 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The square root of 671855296 is about 25920.1716043702. The cubic root of 671855296 is about 875.8409530340.

The spelling of 671855296 in words is "six hundred seventy-one million, eight hundred fifty-five thousand, two hundred ninety-six".