508997 has 8 divisors (see below), whose sum is σ = 547200. Its totient is φ = 471744.

The previous prime is 508987. The next prime is 509023. The reversal of 508997 is 799805.

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

It is a cyclic number.

It is not a de Polignac number, because 508997 - 2¹² = 504901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 508997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508957) 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, 1154 + ... + 1532.

It is an arithmetic number, because the mean of its divisors is an integer number (68400).

2⁵⁰⁸⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

508997 is a deficient number, since it is larger than the sum of its proper divisors (38203).

508997 is a wasteful number, since it uses less digits than its factorization.

508997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 508997 is about 713.4402567840. The cubic root of 508997 is about 79.8432869633.

The spelling of 508997 in words is "five hundred eight thousand, nine hundred ninety-seven".