671914444 has 12 divisors (see below), whose sum is σ = 1200868704. Its totient is φ = 328809104.

The previous prime is 671914417. The next prime is 671914459. The reversal of 671914444 is 444419176.

It is a junction number, because it is equal to n+sod(n) for n = 671914397 and 671914406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1786819 + ... + 1787194.

It is an arithmetic number, because the mean of its divisors is an integer number (100072392).

Almost surely, 2^671914444 is an apocalyptic number.

It is an amenable number.

671914444 is a deficient number, since it is larger than the sum of its proper divisors (528954260).

671914444 is a wasteful number, since it uses less digits than its factorization.

671914444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3574064 (or 3574062 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 671914444 is about 25921.3125439280. The cubic root of 671914444 is about 875.8666543623.

The spelling of 671914444 in words is "six hundred seventy-one million, nine hundred fourteen thousand, four hundred forty-four".