506738 has 4 divisors (see below), whose sum is σ = 760110. Its totient is φ = 253368.

The previous prime is 506731. The next prime is 506743. The reversal of 506738 is 837605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 837605 = 5 ⋅167521.

It can be written as a sum of positive squares in only one way, i.e., 499849 + 6889 = 707^2 + 83^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 506738.

It is not an unprimeable number, because it can be changed into a prime (506731) by changing a digit.

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 as a sum of consecutive naturals, namely, 126683 + ... + 126686.

2⁵⁰⁶⁷³⁸ is an apocalyptic number.

506738 is a deficient number, since it is larger than the sum of its proper divisors (253372).

506738 is a wasteful number, since it uses less digits than its factorization.

506738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253371.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 506738 is about 711.8553223795. The cubic root of 506738 is about 79.7249932242.

The spelling of 506738 in words is "five hundred six thousand, seven hundred thirty-eight".