506637243 has 12 divisors (see below), whose sum is σ = 836353648. Its totient is φ = 289506960.

The previous prime is 506637239. The next prime is 506637251. The reversal of 506637243 is 342736605.

It is not a de Polignac number, because 506637243 - 2² = 506637239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 506637198 and 506637207.

It is not an unprimeable number, because it can be changed into a prime (506637203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4020868 + ... + 4020993.

Almost surely, 2^506637243 is an apocalyptic number.

506637243 is a deficient number, since it is larger than the sum of its proper divisors (329716405).

506637243 is a wasteful number, since it uses less digits than its factorization.

506637243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8041874 (or 8041871 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 506637243 is about 22508.6037550089. The cubic root of 506637243 is about 797.1970884736.

The spelling of 506637243 in words is "five hundred six million, six hundred thirty-seven thousand, two hundred forty-three".