508465 has 4 divisors (see below), whose sum is σ = 610164. Its totient is φ = 406768.

The previous prime is 508451. The next prime is 508471. The reversal of 508465 is 564805.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 156816 + 351649 = 396^2 + 593^2 .

It is a cyclic number.

It is not a de Polignac number, because 508465 - 2⁵ = 508433 is a prime.

It is a super-3 number, since 3×508465³ = 394370522722333875, which contains 333 as substring.

It is a Duffinian number.

508465 is a lucky number.

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50842 + ... + 50851.

It is an arithmetic number, because the mean of its divisors is an integer number (152541).

2⁵⁰⁸⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

508465 is a deficient number, since it is larger than the sum of its proper divisors (101699).

508465 is a wasteful number, since it uses less digits than its factorization.

508465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101698.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 508465 is about 713.0673180002. The cubic root of 508465 is about 79.8154600566.

It can be divided in two parts, 50 and 8465, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 508465 in words is "five hundred eight thousand, four hundred sixty-five".