538647 has 4 divisors (see below), whose sum is σ = 718200. Its totient is φ = 359096.

The previous prime is 538621. The next prime is 538649. The reversal of 538647 is 746835.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 538647 - 2⁷ = 538519 is a prime.

It is a d-powerful number, because it can be written as 5⁵ + 3¹¹ + 6⁶ + 8⁵ + 4⁹ + 7⁵ .

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538649) 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, 89772 + ... + 89777.

It is an arithmetic number, because the mean of its divisors is an integer number (179550).

2⁵³⁸⁶⁴⁷ is an apocalyptic number.

538647 is a deficient number, since it is larger than the sum of its proper divisors (179553).

538647 is a wasteful number, since it uses less digits than its factorization.

538647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179552.

The product of its digits is 20160, while the sum is 33.

The square root of 538647 is about 733.9257455629. The cubic root of 538647 is about 81.3644603753.

The spelling of 538647 in words is "five hundred thirty-eight thousand, six hundred forty-seven".