531846 has 60 divisors (see below), whose sum is σ = 1406988. Its totient is φ = 149688.

The previous prime is 531841. The next prime is 531847. The reversal of 531846 is 648135.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

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 (531841) by changing a digit.

531846 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7905 + ... + 7971.

531846 is a Friedman number, since it can be written as 5*3^4+(8+1)^6, using all its digits and the basic arithmetic operations.

2⁵³¹⁸⁴⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (703494).

531846 is an abundant number, since it is smaller than the sum of its proper divisors (875142).

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

531846 is a wasteful number, since it uses less digits than its factorization.

531846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 79 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 531846 is about 729.2777248758. The cubic root of 531846 is about 81.0205709070.

The spelling of 531846 in words is "five hundred thirty-one thousand, eight hundred forty-six".