497665388 has 12 divisors (see below), whose sum is σ = 950088552. Its totient is φ = 226211520.

The previous prime is 497665381. The next prime is 497665391. The reversal of 497665388 is 883566794.

It is not an unprimeable number, because it can be changed into a prime (497665381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5655245 + ... + 5655332.

It is an arithmetic number, because the mean of its divisors is an integer number (79174046).

Almost surely, 2^497665388 is an apocalyptic number.

It is an amenable number.

497665388 is a deficient number, since it is larger than the sum of its proper divisors (452423164).

497665388 is a wasteful number, since it uses less digits than its factorization.

497665388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11310592 (or 11310590 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 56.

The square root of 497665388 is about 22308.4151835131. The cubic root of 497665388 is about 792.4632764681.

The spelling of 497665388 in words is "four hundred ninety-seven million, six hundred sixty-five thousand, three hundred eighty-eight".