671853676 has 24 divisors (see below), whose sum is σ = 1267202720. Its totient is φ = 309837312.

The previous prime is 671853577. The next prime is 671853691. The reversal of 671853676 is 676358176.

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 7 ways as a sum of consecutive naturals, for example, 70780 + ... + 79708.

Almost surely, 2^671853676 is an apocalyptic number.

It is an amenable number.

671853676 is a deficient number, since it is larger than the sum of its proper divisors (595349044).

671853676 is a wasteful number, since it uses less digits than its factorization.

671853676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10393 (or 10391 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 49.

The square root of 671853676 is about 25920.1403545583. The cubic root of 671853676 is about 875.8402490811.

The spelling of 671853676 in words is "six hundred seventy-one million, eight hundred fifty-three thousand, six hundred seventy-six".