538894815 has 32 divisors (see below), whose sum is σ = 961009920. Its totient is φ = 256264704.

The previous prime is 538894813. The next prime is 538894859. The reversal of 538894815 is 518498835.

It is not a de Polignac number, because 538894815 - 2¹ = 538894813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538894813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50769 + ... + 60458.

It is an arithmetic number, because the mean of its divisors is an integer number (30031560).

Almost surely, 2^538894815 is an apocalyptic number.

538894815 is a deficient number, since it is larger than the sum of its proper divisors (422115105).

538894815 is a wasteful number, since it uses less digits than its factorization.

538894815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111271.

The product of its digits is 1382400, while the sum is 51.

The square root of 538894815 is about 23214.1081026173. The cubic root of 538894815 is about 813.7693622827.

The spelling of 538894815 in words is "five hundred thirty-eight million, eight hundred ninety-four thousand, eight hundred fifteen".