531890 has 8 divisors (see below), whose sum is σ = 957420. Its totient is φ = 212752.

The previous prime is 531877. The next prime is 531901. The reversal of 531890 is 98135.

It can be written as a sum of positive squares in 2 ways, for example, as 499849 + 32041 = 707^2 + 179^2 .

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

It is a Curzon number.

It is a nialpdrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 531890.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26585 + ... + 26604.

2⁵³¹⁸⁹⁰ is an apocalyptic number.

531890 is a deficient number, since it is larger than the sum of its proper divisors (425530).

531890 is a wasteful number, since it uses less digits than its factorization.

531890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53196.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 531890 is about 729.3078910858. The cubic root of 531890 is about 81.0228051420.

The spelling of 531890 in words is "five hundred thirty-one thousand, eight hundred ninety".