530820863 has 4 divisors (see below), whose sum is σ = 530882688. Its totient is φ = 530759040.

The previous prime is 530820859. The next prime is 530820877. The reversal of 530820863 is 368028035.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 368028035 = 5 ⋅73605607.

It is a cyclic number.

It is not a de Polignac number, because 530820863 - 2² = 530820859 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 (530820883) 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, 15458 + ... + 36063.

It is an arithmetic number, because the mean of its divisors is an integer number (132720672).

Almost surely, 2^530820863 is an apocalyptic number.

530820863 is a deficient number, since it is larger than the sum of its proper divisors (61825).

530820863 is a wasteful number, since it uses less digits than its factorization.

530820863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61824.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 530820863 is about 23039.5499739036. The cubic root of 530820863 is about 809.6848151356.

Adding to 530820863 its reverse (368028035), we get a palindrome (898848898).

The spelling of 530820863 in words is "five hundred thirty million, eight hundred twenty thousand, eight hundred sixty-three".