531471 has 12 divisors (see below), whose sum is σ = 753992. Its totient is φ = 332928.

The previous prime is 531457. The next prime is 531481. The reversal of 531471 is 174135.

It is not a de Polignac number, because 531471 - 2⁷ = 531343 is a prime.

It is a super-3 number, since 3×531471³ = 450360166170600333, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 5 + 3¹² + 4² + 1 + 7 + 1 .

It is a Duffinian number.

It is a plaindrome in base 11.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531481) 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, 561 + ... + 1173.

2⁵³¹⁴⁷¹ is an apocalyptic number.

531471 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

531471 is a deficient number, since it is larger than the sum of its proper divisors (222521).

531471 is a wasteful number, since it uses less digits than its factorization.

531471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 633 counting only the distinct ones).

The product of its digits is 420, while the sum is 21.

The square root of 531471 is about 729.0205758413. The cubic root of 531471 is about 81.0015241292.

The spelling of 531471 in words is "five hundred thirty-one thousand, four hundred seventy-one".