671831888 has 80 divisors (see below), whose sum is σ = 1612813440. Its totient is φ = 263996928.

The previous prime is 671831873. The next prime is 671831899. The reversal of 671831888 is 888138176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227123 + ... + 230061.

It is an arithmetic number, because the mean of its divisors is an integer number (20160168).

Almost surely, 2^671831888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671831888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (806406720).

671831888 is an abundant number, since it is smaller than the sum of its proper divisors (940981552).

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

671831888 is a wasteful number, since it uses less digits than its factorization.

671831888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124 (or 3118 counting only the distinct ones).

The product of its digits is 516096, while the sum is 50.

The square root of 671831888 is about 25919.7200602167. The cubic root of 671831888 is about 875.8307812390.

The spelling of 671831888 in words is "six hundred seventy-one million, eight hundred thirty-one thousand, eight hundred eighty-eight".