495209997 has 16 divisors (see below), whose sum is σ = 734014080. Its totient is φ = 329973696.

The previous prime is 495209917. The next prime is 495210029. The reversal of 495209997 is 799902594.

It is not a de Polignac number, because 495209997 - 2²³ = 486821389 is a prime.

It is a super-2 number, since 2×495209997² = 490465882257480018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495209917) 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 15 ways as a sum of consecutive naturals, for example, 74773 + ... + 81125.

It is an arithmetic number, because the mean of its divisors is an integer number (45875880).

Almost surely, 2^495209997 is an apocalyptic number.

It is an amenable number.

495209997 is a deficient number, since it is larger than the sum of its proper divisors (238804083).

495209997 is a wasteful number, since it uses less digits than its factorization.

495209997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9249 (or 9243 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The square root of 495209997 is about 22253.3142924824. The cubic root of 495209997 is about 791.1578370227.

The spelling of 495209997 in words is "four hundred ninety-five million, two hundred nine thousand, nine hundred ninety-seven".