508665 has 8 divisors (see below), whose sum is σ = 813888. Its totient is φ = 271280.

The previous prime is 508661. The next prime is 508693. The reversal of 508665 is 566805.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 508665 - 2² = 508661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (508661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16941 + ... + 16970.

It is an arithmetic number, because the mean of its divisors is an integer number (101736).

2⁵⁰⁸⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

508665 is a deficient number, since it is larger than the sum of its proper divisors (305223).

508665 is a wasteful number, since it uses less digits than its factorization.

508665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33919.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 508665 is about 713.2075434262. The cubic root of 508665 is about 79.8259235756.

It can be divided in two parts, 5086 and 65, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 508665 in words is "five hundred eight thousand, six hundred sixty-five".