508664109 has 4 divisors (see below), whose sum is σ = 678218816. Its totient is φ = 339109404.

The previous prime is 508664077. The next prime is 508664111. The reversal of 508664109 is 901466805.

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 not a de Polignac number, because 508664109 - 2⁵ = 508664077 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 (508664129) 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, 84777349 + ... + 84777354.

It is an arithmetic number, because the mean of its divisors is an integer number (169554704).

Almost surely, 2^508664109 is an apocalyptic number.

It is an amenable number.

508664109 is a deficient number, since it is larger than the sum of its proper divisors (169554707).

508664109 is a wasteful number, since it uses less digits than its factorization.

508664109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169554706.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 508664109 is about 22553.5830634514. The cubic root of 508664109 is about 798.2587696666.

The spelling of 508664109 in words is "five hundred eight million, six hundred sixty-four thousand, one hundred nine".