671195328 has 112 divisors (see below), whose sum is σ = 1821240960. Its totient is φ = 218087424.

The previous prime is 671195321. The next prime is 671195333. The reversal of 671195328 is 823591176.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 671195328.

It is not an unprimeable number, because it can be changed into a prime (671195321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2186151 + ... + 2186457.

It is an arithmetic number, because the mean of its divisors is an integer number (16261080).

Almost surely, 2^671195328 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 671195328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (910620480).

671195328 is an abundant number, since it is smaller than the sum of its proper divisors (1150045632).

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

671195328 is a wasteful number, since it uses less digits than its factorization.

671195328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 564 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 671195328 is about 25907.4376965380. The cubic root of 671195328 is about 875.5540775836.

The spelling of 671195328 in words is "six hundred seventy-one million, one hundred ninety-five thousand, three hundred twenty-eight".