471638 has 8 divisors (see below), whose sum is σ = 738288. Its totient is φ = 225544.

The previous prime is 471619. The next prime is 471641. The reversal of 471638 is 836174.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 471638.

It is a congruent number.

It is an unprimeable number.

471638 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5081 + ... + 5172.

It is an arithmetic number, because the mean of its divisors is an integer number (92286).

2⁴⁷¹⁶³⁸ is an apocalyptic number.

471638 is a deficient number, since it is larger than the sum of its proper divisors (266650).

471638 is a wasteful number, since it uses less digits than its factorization.

471638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10278.

The product of its digits is 4032, while the sum is 29.

The square root of 471638 is about 686.7590552734. The cubic root of 471638 is about 77.8400183579.

The spelling of 471638 in words is "four hundred seventy-one thousand, six hundred thirty-eight".