671408112 has 40 divisors (see below), whose sum is σ = 1740767056. Its totient is φ = 222990336.

The previous prime is 671408107. The next prime is 671408117. The reversal of 671408112 is 211804176.

It is an interprime number because it is at equal distance from previous prime (671408107) and next prime (671408117).

It is a self number, because there is not a number n which added to its sum of digits gives 671408112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671408117) 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, 11953 + ... + 38544.

Almost surely, 2^671408112 is an apocalyptic number.

It is an amenable number.

671408112 is an abundant number, since it is smaller than the sum of its proper divisors (1069358944).

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

671408112 is a wasteful number, since it uses less digits than its factorization.

671408112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50785 (or 50779 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 671408112 is about 25911.5439910477. The cubic root of 671408112 is about 875.6465912464.

The spelling of 671408112 in words is "six hundred seventy-one million, four hundred eight thousand, one hundred twelve".