508968247 has 4 divisors (see below), whose sum is σ = 516564856. Its totient is φ = 501371640.

The previous prime is 508968227. The next prime is 508968347. The reversal of 508968247 is 742869805.

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

It is a cyclic number.

It is not a de Polignac number, because 508968247 - 2¹⁹ = 508443959 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 508968247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508968227) 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, 3798204 + ... + 3798337.

It is an arithmetic number, because the mean of its divisors is an integer number (129141214).

Almost surely, 2^508968247 is an apocalyptic number.

508968247 is a deficient number, since it is larger than the sum of its proper divisors (7596609).

508968247 is an equidigital number, since it uses as much as digits as its factorization.

508968247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7596608.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 508968247 is about 22560.3246208914. The cubic root of 508968247 is about 798.4178349843.

The spelling of 508968247 in words is "five hundred eight million, nine hundred sixty-eight thousand, two hundred forty-seven".