531682 has 4 divisors (see below), whose sum is σ = 797526. Its totient is φ = 265840.

The previous prime is 531673. The next prime is 531689. The reversal of 531682 is 286135.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 370881 + 160801 = 609^2 + 401^2 .

It is an Ulam number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (531689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132919 + ... + 132922.

531682 is a Friedman number, since it can be written as 3^5-2+(8+1)^6, using all its digits and the basic arithmetic operations.

2⁵³¹⁶⁸² is an apocalyptic number.

531682 is a deficient number, since it is larger than the sum of its proper divisors (265844).

531682 is a wasteful number, since it uses less digits than its factorization.

531682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265843.

The product of its digits is 1440, while the sum is 25.

The square root of 531682 is about 729.1652761892. The cubic root of 531682 is about 81.0122422181.

The spelling of 531682 in words is "five hundred thirty-one thousand, six hundred eighty-two".