497947189 has 2 divisors, whose sum is σ = 497947190. Its totient is φ = 497947188.

The previous prime is 497947183. The next prime is 497947199. The reversal of 497947189 is 981749794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360354289 + 137592900 = 18983^2 + 11730^2 .

It is a cyclic number.

It is not a de Polignac number, because 497947189 - 2¹³ = 497938997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497947183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248973594 + 248973595.

It is an arithmetic number, because the mean of its divisors is an integer number (248973595).

Almost surely, 2^497947189 is an apocalyptic number.

It is an amenable number.

497947189 is a deficient number, since it is larger than the sum of its proper divisors (1).

497947189 is an equidigital number, since it uses as much as digits as its factorization.

497947189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 58.

The square root of 497947189 is about 22314.7303143014. The cubic root of 497947189 is about 792.6128246127.

The spelling of 497947189 in words is "four hundred ninety-seven million, nine hundred forty-seven thousand, one hundred eighty-nine".