538535815 has 8 divisors (see below), whose sum is σ = 652283280. Its totient is φ = 426801792.

The previous prime is 538535797. The next prime is 538535821. The reversal of 538535815 is 518535835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 538535815 - 2¹⁵ = 538503047 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 502770 + ... + 503839.

It is an arithmetic number, because the mean of its divisors is an integer number (81535410).

Almost surely, 2^538535815 is an apocalyptic number.

538535815 is a deficient number, since it is larger than the sum of its proper divisors (113747465).

538535815 is a wasteful number, since it uses less digits than its factorization.

538535815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006721.

The product of its digits is 360000, while the sum is 43.

The square root of 538535815 is about 23206.3744475521. The cubic root of 538535815 is about 813.5886169930.

The spelling of 538535815 in words is "five hundred thirty-eight million, five hundred thirty-five thousand, eight hundred fifteen".