497421768 has 64 divisors (see below), whose sum is σ = 1329851520. Its totient is φ = 154496000.

The previous prime is 497421763. The next prime is 497421787. The reversal of 497421768 is 867124794.

It is not an unprimeable number, because it can be changed into a prime (497421761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35173 + ... + 47243.

It is an arithmetic number, because the mean of its divisors is an integer number (20778930).

Almost surely, 2^497421768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 497421768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664925760).

497421768 is an abundant number, since it is smaller than the sum of its proper divisors (832429752).

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

497421768 is a wasteful number, since it uses less digits than its factorization.

497421768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12198 (or 12194 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 497421768 is about 22302.9542437768. The cubic root of 497421768 is about 792.3339449806. Note that the first 3 decimals are identical.

The spelling of 497421768 in words is "four hundred ninety-seven million, four hundred twenty-one thousand, seven hundred sixty-eight".