471491671 has 18 divisors (see below), whose sum is σ = 557008560. Its totient is φ = 397876752.

The previous prime is 471491641. The next prime is 471491687. The reversal of 471491671 is 176194174.

It is a de Polignac number, because none of the positive numbers 2^k-471491671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471491641) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1350805 + ... + 1351153.

It is an arithmetic number, because the mean of its divisors is an integer number (30944920).

Almost surely, 2^471491671 is an apocalyptic number.

471491671 is a deficient number, since it is larger than the sum of its proper divisors (85516889).

471491671 is an frugal number, since it uses more digits than its factorization.

471491671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 435 counting only the distinct ones).

The product of its digits is 42336, while the sum is 40.

The square root of 471491671 is about 21713.8589615020. The cubic root of 471491671 is about 778.3196738791.

The spelling of 471491671 in words is "four hundred seventy-one million, four hundred ninety-one thousand, six hundred seventy-one".