531798 has 16 divisors (see below), whose sum is σ = 1081776. Its totient is φ = 174240.

The previous prime is 531793. The next prime is 531799. The reversal of 531798 is 897135.

It is a super-2 number, since 2×531798² = 565618225608, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361 + ... + 1092.

It is an arithmetic number, because the mean of its divisors is an integer number (67611).

2⁵³¹⁷⁹⁸ is an apocalyptic number.

531798 is an abundant number, since it is smaller than the sum of its proper divisors (549978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531798 is a wasteful number, since it uses less digits than its factorization.

531798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519.

The product of its digits is 7560, while the sum is 33.

The square root of 531798 is about 729.2448148599. The cubic root of 531798 is about 81.0181334192.

The spelling of 531798 in words is "five hundred thirty-one thousand, seven hundred ninety-eight".