671415672 has 32 divisors (see below), whose sum is σ = 1719481680. Its totient is φ = 218346240.

The previous prime is 671415649. The next prime is 671415683. The reversal of 671415672 is 276514176.

It is a super-3 number, since 3×671415672³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 671415672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340183 + ... + 342150.

Almost surely, 2^671415672 is an apocalyptic number.

It is an amenable number.

671415672 is an abundant number, since it is smaller than the sum of its proper divisors (1048066008).

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

671415672 is a wasteful number, since it uses less digits than its factorization.

671415672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682383 (or 682379 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 671415672 is about 25911.6898715618. The cubic root of 671415672 is about 875.6498778035.

The spelling of 671415672 in words is "six hundred seventy-one million, four hundred fifteen thousand, six hundred seventy-two".