471663 has 14 divisors (see below), whose sum is σ = 708264. Its totient is φ = 313956.

The previous prime is 471659. The next prime is 471671. The reversal of 471663 is 366174.

It is not a de Polignac number, because 471663 - 2² = 471659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471673) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 406 + ... + 1052.

471663 is a Friedman number, since it can be written as 647*(3*1)^6, using all its digits and the basic arithmetic operations.

2⁴⁷¹⁶⁶³ is an apocalyptic number.

471663 is a deficient number, since it is larger than the sum of its proper divisors (236601).

471663 is an frugal number, since it uses more digits than its factorization.

471663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 650 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 471663 is about 686.7772564668. Note that the first 3 decimals coincide. The cubic root of 471663 is about 77.8413936826.

The spelling of 471663 in words is "four hundred seventy-one thousand, six hundred sixty-three".