531393696 has 120 divisors (see below), whose sum is σ = 1569728160. Its totient is φ = 176349312.

The previous prime is 531393677. The next prime is 531393697. The reversal of 531393696 is 696393135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531393697) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1137655 + ... + 1138121.

It is an arithmetic number, because the mean of its divisors is an integer number (13081068).

Almost surely, 2^531393696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531393696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784864080).

531393696 is an abundant number, since it is smaller than the sum of its proper divisors (1038334464).

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

531393696 is a wasteful number, since it uses less digits than its factorization.

531393696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928 (or 911 counting only the distinct ones).

The product of its digits is 393660, while the sum is 45.

The square root of 531393696 is about 23051.9781363769. The cubic root of 531393696 is about 809.9759663651.

The spelling of 531393696 in words is "five hundred thirty-one million, three hundred ninety-three thousand, six hundred ninety-six".