497704509 has 12 divisors (see below), whose sum is σ = 721082752. Its totient is φ = 330798600.

The previous prime is 497704507. The next prime is 497704511. The reversal of 497704509 is 905407794.

It is an interprime number because it is at equal distance from previous prime (497704507) and next prime (497704511).

It is not a de Polignac number, because 497704509 - 2¹ = 497704507 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 (497704507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80557 + ... + 86514.

Almost surely, 2^497704509 is an apocalyptic number.

It is an amenable number.

497704509 is a deficient number, since it is larger than the sum of its proper divisors (223378243).

497704509 is a wasteful number, since it uses less digits than its factorization.

497704509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167408 (or 167405 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 497704509 is about 22309.2919878691. The cubic root of 497704509 is about 792.4840408506.

The spelling of 497704509 in words is "four hundred ninety-seven million, seven hundred four thousand, five hundred nine".