494973169 has 2 divisors, whose sum is σ = 494973170. Its totient is φ = 494973168.

The previous prime is 494973107. The next prime is 494973217. The reversal of 494973169 is 961379494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 493372944 + 1600225 = 22212^2 + 1265^2 .

It is a cyclic number.

It is not a de Polignac number, because 494973169 - 2¹¹ = 494971121 is a prime.

It is a super-2 number, since 2×494973169² = 489996876059805122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (494977169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247486584 + 247486585.

It is an arithmetic number, because the mean of its divisors is an integer number (247486585).

Almost surely, 2^494973169 is an apocalyptic number.

It is an amenable number.

494973169 is a deficient number, since it is larger than the sum of its proper divisors (1).

494973169 is an equidigital number, since it uses as much as digits as its factorization.

494973169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 52.

The square root of 494973169 is about 22247.9924712321. The cubic root of 494973169 is about 791.0316964587.

The spelling of 494973169 in words is "four hundred ninety-four million, nine hundred seventy-three thousand, one hundred sixty-nine".