506638117 has 4 divisors (see below), whose sum is σ = 506721280. Its totient is φ = 506554956.

The previous prime is 506638073. The next prime is 506638127. The reversal of 506638117 is 711836605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 506638117 - 2¹⁵ = 506605349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506638127) 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, 31653 + ... + 44890.

It is an arithmetic number, because the mean of its divisors is an integer number (126680320).

Almost surely, 2^506638117 is an apocalyptic number.

It is an amenable number.

506638117 is a deficient number, since it is larger than the sum of its proper divisors (83163).

506638117 is an equidigital number, since it uses as much as digits as its factorization.

506638117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83162.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 506638117 is about 22508.6231697987. The cubic root of 506638117 is about 797.1975468883.

The spelling of 506638117 in words is "five hundred six million, six hundred thirty-eight thousand, one hundred seventeen".