538867849 has 4 divisors (see below), whose sum is σ = 580319236. Its totient is φ = 497416464.

The previous prime is 538867843. The next prime is 538867867. The reversal of 538867849 is 948768835.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45805824 + 493062025 = 6768^2 + 22205^2 .

It is a cyclic number.

It is not a de Polignac number, because 538867849 - 2³ = 538867841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538867793 and 538867802.

It is not an unprimeable number, because it can be changed into a prime (538867841) 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, 20725674 + ... + 20725699.

It is an arithmetic number, because the mean of its divisors is an integer number (145079809).

Almost surely, 2^538867849 is an apocalyptic number.

It is an amenable number.

538867849 is a deficient number, since it is larger than the sum of its proper divisors (41451387).

538867849 is a wasteful number, since it uses less digits than its factorization.

538867849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41451386.

The product of its digits is 11612160, while the sum is 58.

The square root of 538867849 is about 23213.5272847536. The cubic root of 538867849 is about 813.7557885325.

It can be divided in two parts, 5388 and 67849, that added together give a palindrome (73237).

The spelling of 538867849 in words is "five hundred thirty-eight million, eight hundred sixty-seven thousand, eight hundred forty-nine".