531869 has 8 divisors (see below), whose sum is σ = 578592. Its totient is φ = 486000.

The previous prime is 531863. The next prime is 531871. The reversal of 531869 is 968135.

531869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

531869 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

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

It is a cyclic number.

It is not a de Polignac number, because 531869 - 2⁸ = 531613 is a prime.

It is a super-2 number, since 2×531869² = 565769266322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531863) 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, 1994 + ... + 2244.

It is an arithmetic number, because the mean of its divisors is an integer number (72324).

2⁵³¹⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

531869 is a deficient number, since it is larger than the sum of its proper divisors (46723).

531869 is a wasteful number, since it uses less digits than its factorization.

531869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427.

The product of its digits is 6480, while the sum is 32.

The square root of 531869 is about 729.2934937321. The cubic root of 531869 is about 81.0217388179.

The spelling of 531869 in words is "five hundred thirty-one thousand, eight hundred sixty-nine".