863534536 has 16 divisors (see below), whose sum is σ = 1619472240. Its totient is φ = 431675280.

The previous prime is 863534531. The next prime is 863534569. The reversal of 863534536 is 635435368.

It is a junction number, because it is equal to n+sod(n) for n = 863534492 and 863534501.

It is not an unprimeable number, because it can be changed into a prime (863534531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44355 + ... + 60781.

It is an arithmetic number, because the mean of its divisors is an integer number (101217015).

Almost surely, 2^863534536 is an apocalyptic number.

It is an amenable number.

863534536 is a deficient number, since it is larger than the sum of its proper divisors (755937704).

863534536 is a wasteful number, since it uses less digits than its factorization.

863534536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23004 (or 23000 counting only the distinct ones).

The product of its digits is 777600, while the sum is 43.

The square root of 863534536 is about 29385.9581433038. The cubic root of 863534536 is about 952.2695638734.

The spelling of 863534536 in words is "eight hundred sixty-three million, five hundred thirty-four thousand, five hundred thirty-six".