494949497 has 4 divisors (see below), whose sum is σ = 565656576. Its totient is φ = 424242420.

The previous prime is 494949491. The next prime is 494949517. The reversal of 494949497 is 794949494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 794949494 = 2 ⋅397474747.

It is not a de Polignac number, because 494949497 - 2¹⁰ = 494948473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494949491) 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 in 3 ways as a sum of consecutive naturals, for example, 35353529 + ... + 35353542.

It is an arithmetic number, because the mean of its divisors is an integer number (141414144).

Almost surely, 2^494949497 is an apocalyptic number.

It is an amenable number.

494949497 is a deficient number, since it is larger than the sum of its proper divisors (70707079).

494949497 is an equidigital number, since it uses as much as digits as its factorization.

494949497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70707078.

The product of its digits is 11757312, while the sum is 59.

The square root of 494949497 is about 22247.4604618145. The cubic root of 494949497 is about 791.0190859429.

It can be divided in two parts, 49494949 and 7, that multiplied together give a palindrome (346464643).

The spelling of 494949497 in words is "four hundred ninety-four million, nine hundred forty-nine thousand, four hundred ninety-seven".