471681 has 12 divisors (see below), whose sum is σ = 778752. Its totient is φ = 269496.

The previous prime is 471677. The next prime is 471683. The reversal of 471681 is 186174.

It is a happy number.

It is not a de Polignac number, because 471681 - 2² = 471677 is a prime.

It is a super-2 number, since 2×471681² = 444965931522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (471683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3681 + ... + 3806.

It is an arithmetic number, because the mean of its divisors is an integer number (64896).

2⁴⁷¹⁶⁸¹ is an apocalyptic number.

It is an amenable number.

471681 is a deficient number, since it is larger than the sum of its proper divisors (307071).

471681 is a wasteful number, since it uses less digits than its factorization.

471681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500 (or 7497 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 471681 is about 686.7903610273. The cubic root of 471681 is about 77.8423838862.

It can be divided in two parts, 47 and 1681, that added together give a cube (1728 = 12³).

The spelling of 471681 in words is "four hundred seventy-one thousand, six hundred eighty-one".