508461997 has 2 divisors, whose sum is σ = 508461998. Its totient is φ = 508461996.

The previous prime is 508461979. The next prime is 508462039. The reversal of 508461997 is 799164805.

Together with previous prime (508461979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 427083556 + 81378441 = 20666^2 + 9021^2 .

It is a cyclic number.

It is not a de Polignac number, because 508461997 - 2¹⁹ = 507937709 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 508461997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (508461097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254230998 + 254230999.

It is an arithmetic number, because the mean of its divisors is an integer number (254230999).

Almost surely, 2^508461997 is an apocalyptic number.

It is an amenable number.

508461997 is a deficient number, since it is larger than the sum of its proper divisors (1).

508461997 is an equidigital number, since it uses as much as digits as its factorization.

508461997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 508461997 is about 22549.1019111627. The cubic root of 508461997 is about 798.1530292596.

It can be divided in two parts, 5084 and 61997, that added together give a square (67081 = 259²).

The spelling of 508461997 in words is "five hundred eight million, four hundred sixty-one thousand, nine hundred ninety-seven".