506687726 has 4 divisors (see below), whose sum is σ = 760031592. Its totient is φ = 253343862.

The previous prime is 506687719. The next prime is 506687747. The reversal of 506687726 is 627786605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 627786605 = 5 ⋅125557321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126671930 + ... + 126671933.

It is an arithmetic number, because the mean of its divisors is an integer number (190007898).

Almost surely, 2^506687726 is an apocalyptic number.

506687726 is a deficient number, since it is larger than the sum of its proper divisors (253343866).

506687726 is a wasteful number, since it uses less digits than its factorization.

506687726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253343865.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 506687726 is about 22509.7251427022. The cubic root of 506687726 is about 797.2235660402.

The spelling of 506687726 in words is "five hundred six million, six hundred eighty-seven thousand, seven hundred twenty-six".