531696863 has 4 divisors (see below), whose sum is σ = 535578000. Its totient is φ = 527815728.

The previous prime is 531696857. The next prime is 531696883. The reversal of 531696863 is 368696135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368696135 = 5 ⋅73739227.

It is a cyclic number.

It is not a de Polignac number, because 531696863 - 2¹⁰ = 531695839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531696833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1940363 + ... + 1940636.

It is an arithmetic number, because the mean of its divisors is an integer number (133894500).

Almost surely, 2^531696863 is an apocalyptic number.

531696863 is a deficient number, since it is larger than the sum of its proper divisors (3881137).

531696863 is a wasteful number, since it uses less digits than its factorization.

531696863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881136.

The product of its digits is 699840, while the sum is 47.

The square root of 531696863 is about 23058.5529251079. The cubic root of 531696863 is about 810.1299710151.

The spelling of 531696863 in words is "five hundred thirty-one million, six hundred ninety-six thousand, eight hundred sixty-three".