538673 has 4 divisors (see below), whose sum is σ = 540708. Its totient is φ = 536640.

The previous prime is 538651. The next prime is 538697. The reversal of 538673 is 376835.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 376835 = 5 ⋅75367.

It can be written as a sum of positive squares in 2 ways, for example, as 150544 + 388129 = 388^2 + 623^2 .

It is a cyclic number.

It is not a de Polignac number, because 538673 - 2¹² = 534577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (538073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548 + ... + 1173.

It is an arithmetic number, because the mean of its divisors is an integer number (135177).

2⁵³⁸⁶⁷³ is an apocalyptic number.

It is an amenable number.

538673 is a deficient number, since it is larger than the sum of its proper divisors (2035).

538673 is a wasteful number, since it uses less digits than its factorization.

538673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034.

The product of its digits is 15120, while the sum is 32.

The square root of 538673 is about 733.9434583127. The cubic root of 538673 is about 81.3657694837.

The spelling of 538673 in words is "five hundred thirty-eight thousand, six hundred seventy-three".