538459647 has 16 divisors (see below), whose sum is σ = 817267968. Its totient is φ = 312150080.

The previous prime is 538459643. The next prime is 538459651. The reversal of 538459647 is 746954835.

It is an interprime number because it is at equal distance from previous prime (538459643) and next prime (538459651).

It is not a de Polignac number, because 538459647 - 2² = 538459643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 538459647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538459643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353958 + ... + 355475.

It is an arithmetic number, because the mean of its divisors is an integer number (51079248).

Almost surely, 2^538459647 is an apocalyptic number.

538459647 is a deficient number, since it is larger than the sum of its proper divisors (278808321).

538459647 is a wasteful number, since it uses less digits than its factorization.

538459647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709470.

The product of its digits is 3628800, while the sum is 51.

The square root of 538459647 is about 23204.7332887064. The cubic root of 538459647 is about 813.5502584550.

The spelling of 538459647 in words is "five hundred thirty-eight million, four hundred fifty-nine thousand, six hundred forty-seven".