497207797 has 4 divisors (see below), whose sum is σ = 501607980. Its totient is φ = 492807616.

The previous prime is 497207773. The next prime is 497207831. The reversal of 497207797 is 797702794.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 190467601 + 306740196 = 13801^2 + 17514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497207797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497207717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2199922 + ... + 2200147.

It is an arithmetic number, because the mean of its divisors is an integer number (125401995).

Almost surely, 2^497207797 is an apocalyptic number.

It is an amenable number.

497207797 is a deficient number, since it is larger than the sum of its proper divisors (4400183).

497207797 is a wasteful number, since it uses less digits than its factorization.

497207797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400182.

The product of its (nonzero) digits is 1555848, while the sum is 52.

The square root of 497207797 is about 22298.1568072341. The cubic root of 497207797 is about 792.2203185356.

The spelling of 497207797 in words is "four hundred ninety-seven million, two hundred seven thousand, seven hundred ninety-seven".