671040873 has 12 divisors (see below), whose sum is σ = 974358528. Its totient is φ = 445017240.

The previous prime is 671040871. The next prime is 671040899. The reversal of 671040873 is 378040176.

It is not a de Polignac number, because 671040873 - 2¹ = 671040871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671040871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193465 + ... + 196902.

It is an arithmetic number, because the mean of its divisors is an integer number (81196544).

Almost surely, 2^671040873 is an apocalyptic number.

It is an amenable number.

671040873 is a deficient number, since it is larger than the sum of its proper divisors (303317655).

671040873 is a wasteful number, since it uses less digits than its factorization.

671040873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390564 (or 390561 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 671040873 is about 25904.4566242954. The cubic root of 671040873 is about 875.4869118003.

The spelling of 671040873 in words is "six hundred seventy-one million, forty thousand, eight hundred seventy-three".