671849112 has 192 divisors, whose sum is σ = 2022451200. Its totient is φ = 185011200.

The previous prime is 671849111. The next prime is 671849117. The reversal of 671849112 is 211948176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671849111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1530189 + ... + 1530627.

It is an arithmetic number, because the mean of its divisors is an integer number (10533600).

Almost surely, 2^671849112 is an apocalyptic number.

671849112 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671849112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1011225600).

671849112 is an abundant number, since it is smaller than the sum of its proper divisors (1350602088).

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

671849112 is a wasteful number, since it uses less digits than its factorization.

671849112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 503 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 671849112 is about 25920.0523147620. The cubic root of 671849112 is about 875.8382658398.

The spelling of 671849112 in words is "six hundred seventy-one million, eight hundred forty-nine thousand, one hundred twelve".