531694 has 4 divisors (see below), whose sum is σ = 797544. Its totient is φ = 265846.

The previous prime is 531689. The next prime is 531701. The reversal of 531694 is 496135.

531694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a d-powerful number, because it can be written as 5³ + 3³ + 6² + 1 + 9⁶ + 4³ .

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132922 + ... + 132925.

It is an arithmetic number, because the mean of its divisors is an integer number (199386).

531694 is a Friedman number, since it can be written as 9^6+4^(5-1)-3, using all its digits and the basic arithmetic operations.

2⁵³¹⁶⁹⁴ is an apocalyptic number.

531694 is a deficient number, since it is larger than the sum of its proper divisors (265850).

531694 is a wasteful number, since it uses less digits than its factorization.

531694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265849.

The product of its digits is 3240, while the sum is 28.

The square root of 531694 is about 729.1735047298. The cubic root of 531694 is about 81.0128516925.

It can be divided in two parts, 531 and 694, that added together give a triangular number (1225 = T₄₉).

The spelling of 531694 in words is "five hundred thirty-one thousand, six hundred ninety-four".