471931 has 2 divisors, whose sum is σ = 471932. Its totient is φ = 471930.

The previous prime is 471929. The next prime is 471943. The reversal of 471931 is 139174.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 471931 - 2¹ = 471929 is a prime.

It is a super-2 number, since 2×471931² = 445437737522, which contains 22 as substring.

Together with 471929, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 471896 and 471905.

It is not a weakly prime, because it can be changed into another prime (471901) 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 as a sum of consecutive naturals, namely, 235965 + 235966.

It is an arithmetic number, because the mean of its divisors is an integer number (235966).

2⁴⁷¹⁹³¹ is an apocalyptic number.

471931 is a deficient number, since it is larger than the sum of its proper divisors (1).

471931 is an equidigital number, since it uses as much as digits as its factorization.

471931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 25.

The square root of 471931 is about 686.9723429659. The cubic root of 471931 is about 77.8561341106.

Subtracting from 471931 its sum of digits (25), we obtain a triangular number (471906 = T₉₇₁).

The spelling of 471931 in words is "four hundred seventy-one thousand, nine hundred thirty-one".