671388275 has 12 divisors (see below), whose sum is σ = 876339000. Its totient is φ = 508841280.

The previous prime is 671388253. The next prime is 671388281. The reversal of 671388275 is 572883176.

It is a happy number.

It is not a de Polignac number, because 671388275 - 2¹⁶ = 671322739 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 706250 + ... + 707199.

It is an arithmetic number, because the mean of its divisors is an integer number (73028250).

Almost surely, 2^671388275 is an apocalyptic number.

671388275 is a deficient number, since it is larger than the sum of its proper divisors (204950725).

671388275 is a wasteful number, since it uses less digits than its factorization.

671388275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413478 (or 1413473 counting only the distinct ones).

The product of its digits is 564480, while the sum is 47.

The square root of 671388275 is about 25911.1612051641. The cubic root of 671388275 is about 875.6379673944.

The spelling of 671388275 in words is "six hundred seventy-one million, three hundred eighty-eight thousand, two hundred seventy-five".