538624823 has 4 divisors (see below), whose sum is σ = 587590728. Its totient is φ = 489658920.

The previous prime is 538624813. The next prime is 538624829. The reversal of 538624823 is 328426835.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538624823 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 (538624829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24482936 + ... + 24482957.

It is an arithmetic number, because the mean of its divisors is an integer number (146897682).

Almost surely, 2^538624823 is an apocalyptic number.

538624823 is a deficient number, since it is larger than the sum of its proper divisors (48965905).

538624823 is a wasteful number, since it uses less digits than its factorization.

538624823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48965904.

The product of its digits is 276480, while the sum is 41.

The square root of 538624823 is about 23208.2921172584. The cubic root of 538624823 is about 813.6334372287.

It can be divided in two parts, 53862 and 4823, that added together give a palindrome (58685).

The spelling of 538624823 in words is "five hundred thirty-eight million, six hundred twenty-four thousand, eight hundred twenty-three".