531904 has 14 divisors (see below), whose sum is σ = 1055624. Its totient is φ = 265920.

The previous prime is 531901. The next prime is 531911. The reversal of 531904 is 409135.

It is a d-powerful number, because it can be written as 5³ + 3¹² + 9² + 1 + 0 + 4⁴ .

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 (531901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4092 + ... + 4219.

2⁵³¹⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

531904 is a deficient number, since it is larger than the sum of its proper divisors (523720).

531904 is an equidigital number, since it uses as much as digits as its factorization.

531904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8323 (or 8313 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 531904 is about 729.3174891637. The cubic root of 531904 is about 81.0235160091.

The spelling of 531904 in words is "five hundred thirty-one thousand, nine hundred four".