497987636 has 12 divisors (see below), whose sum is σ = 871671780. Its totient is φ = 248938560.

The previous prime is 497987597. The next prime is 497987683. The reversal of 497987636 is 636789794.

It can be written as a sum of positive squares in 2 ways, for example, as 257923600 + 240064036 = 16060^2 + 15494^2 .

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, 11696 + ... + 33656.

It is an arithmetic number, because the mean of its divisors is an integer number (72639315).

Almost surely, 2^497987636 is an apocalyptic number.

It is an amenable number.

497987636 is a deficient number, since it is larger than the sum of its proper divisors (373684144).

497987636 is a wasteful number, since it uses less digits than its factorization.

497987636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27634 (or 27632 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 59.

The square root of 497987636 is about 22315.6365806580. The cubic root of 497987636 is about 792.6342846816.

The spelling of 497987636 in words is "four hundred ninety-seven million, nine hundred eighty-seven thousand, six hundred thirty-six".