538606543 has 4 divisors (see below), whose sum is σ = 540205120. Its totient is φ = 537007968.

The previous prime is 538606517. The next prime is 538606553. The reversal of 538606543 is 345606835.

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-538606543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538606496 and 538606505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538606553) 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, 798783 + ... + 799456.

It is an arithmetic number, because the mean of its divisors is an integer number (135051280).

Almost surely, 2^538606543 is an apocalyptic number.

538606543 is a deficient number, since it is larger than the sum of its proper divisors (1598577).

538606543 is a wasteful number, since it uses less digits than its factorization.

538606543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598576.

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 538606543 is about 23207.8982891601. The cubic root of 538606543 is about 813.6242326848.

The spelling of 538606543 in words is "five hundred thirty-eight million, six hundred six thousand, five hundred forty-three".