497220784 has 20 divisors (see below), whose sum is σ = 964024360. Its totient is φ = 248440320.

The previous prime is 497220781. The next prime is 497220791. The reversal of 497220784 is 487022794.

It is a self number, because there is not a number n which added to its sum of digits gives 497220784.

It is not an unprimeable number, because it can be changed into a prime (497220781) 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, 15424 + ... + 35104.

It is an arithmetic number, because the mean of its divisors is an integer number (48201218).

Almost surely, 2^497220784 is an apocalyptic number.

It is an amenable number.

497220784 is a deficient number, since it is larger than the sum of its proper divisors (466803576).

497220784 is a wasteful number, since it uses less digits than its factorization.

497220784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21268 (or 21262 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 497220784 is about 22298.4480177433. The cubic root of 497220784 is about 792.2272160378.

The spelling of 497220784 in words is "four hundred ninety-seven million, two hundred twenty thousand, seven hundred eighty-four".