671044608 has 176 divisors, whose sum is σ = 2141325760. Its totient is φ = 206364672.

The previous prime is 671044589. The next prime is 671044609. The reversal of 671044608 is 806440176.

671044608 is a `hidden beast` number, since 6 + 7 + 1 + 0 + 44 + 608 = 666.

671044608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671044609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358491 + ... + 360357.

Almost surely, 2^671044608 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 671044608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1070662880).

671044608 is an abundant number, since it is smaller than the sum of its proper divisors (1470281152).

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

671044608 is a wasteful number, since it uses less digits than its factorization.

671044608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909 (or 1885 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 671044608 is about 25904.5287160373. The cubic root of 671044608 is about 875.4885361115.

The spelling of 671044608 in words is "six hundred seventy-one million, forty-four thousand, six hundred eight".