497871365 has 4 divisors (see below), whose sum is σ = 597445644. Its totient is φ = 398297088.

The previous prime is 497871281. The next prime is 497871373. The reversal of 497871365 is 563178794.

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 96550276 + 401321089 = 9826^2 + 20033^2 .

It is a cyclic number.

It is not a de Polignac number, because 497871365 - 2⁸ = 497871109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49787132 + ... + 49787141.

It is an arithmetic number, because the mean of its divisors is an integer number (149361411).

Almost surely, 2^497871365 is an apocalyptic number.

It is an amenable number.

497871365 is a deficient number, since it is larger than the sum of its proper divisors (99574279).

497871365 is an equidigital number, since it uses as much as digits as its factorization.

497871365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99574278.

The product of its digits is 1270080, while the sum is 50.

The square root of 497871365 is about 22313.0312821902. The cubic root of 497871365 is about 792.5725913464.

The spelling of 497871365 in words is "four hundred ninety-seven million, eight hundred seventy-one thousand, three hundred sixty-five".