538564849 has 9 divisors (see below), whose sum is σ = 563557323. Its totient is φ = 514638432.

The previous prime is 538564843. The next prime is 538564867. The reversal of 538564849 is 948465835.

The square root of 538564849 is 23207.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 165302449 + 373262400 = 12857^2 + 19320^2 .

It is not a de Polignac number, because 538564849 - 2¹⁹ = 538040561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538564796 and 538564805.

It is not an unprimeable number, because it can be changed into a prime (538564843) 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 8 ways as a sum of consecutive naturals, for example, 533257 + ... + 534265.

Almost surely, 2^538564849 is an apocalyptic number.

538564849 is the 23207-th square number.

538564849 is the 11604-th centered octagonal number.

It is an amenable number.

538564849 is a deficient number, since it is larger than the sum of its proper divisors (24992474).

538564849 is an frugal number, since it uses more digits than its factorization.

538564849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064 (or 1032 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 52.

The cubic root of 538564849 is about 813.6032376903.

The spelling of 538564849 in words is "five hundred thirty-eight million, five hundred sixty-four thousand, eight hundred forty-nine".