497397784 has 16 divisors (see below), whose sum is σ = 1004361120. Its totient is φ = 229568160.

The previous prime is 497397779. The next prime is 497397787. The reversal of 497397784 is 487793794.

It is a super-2 number, since 2×497397784² = 494809111056221312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497397787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2391232 + ... + 2391439.

It is an arithmetic number, because the mean of its divisors is an integer number (62772570).

Almost surely, 2^497397784 is an apocalyptic number.

It is an amenable number.

497397784 is an abundant number, since it is smaller than the sum of its proper divisors (506963336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

497397784 is a wasteful number, since it uses less digits than its factorization.

497397784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4782690 (or 4782686 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 58.

The square root of 497397784 is about 22302.4165506790. The cubic root of 497397784 is about 792.3212102191.

The spelling of 497397784 in words is "four hundred ninety-seven million, three hundred ninety-seven thousand, seven hundred eighty-four".