671596971 has 16 divisors (see below), whose sum is σ = 943219200. Its totient is φ = 423884448.

The previous prime is 671596969. The next prime is 671597029. The reversal of 671596971 is 179695176.

It is not a de Polignac number, because 671596971 - 2¹ = 671596969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671594971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112750 + ... + 118556.

It is an arithmetic number, because the mean of its divisors is an integer number (58951200).

Almost surely, 2^671596971 is an apocalyptic number.

671596971 is a deficient number, since it is larger than the sum of its proper divisors (271622229).

671596971 is a wasteful number, since it uses less digits than its factorization.

671596971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7858.

The product of its digits is 714420, while the sum is 51.

The square root of 671596971 is about 25915.1880371337. The cubic root of 671596971 is about 875.7286864893.

The spelling of 671596971 in words is "six hundred seventy-one million, five hundred ninety-six thousand, nine hundred seventy-one".