497081856 has 80 divisors (see below), whose sum is σ = 1336856400. Its totient is φ = 164118528.

The previous prime is 497081843. The next prime is 497081861. The reversal of 497081856 is 658180794.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165940 + ... + 168908.

It is an arithmetic number, because the mean of its divisors is an integer number (16710705).

Almost surely, 2^497081856 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 497081856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (668428200).

497081856 is an abundant number, since it is smaller than the sum of its proper divisors (839774544).

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

497081856 is a wasteful number, since it uses less digits than its factorization.

497081856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099 (or 3083 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 497081856 is about 22295.3326057271. The cubic root of 497081856 is about 792.1534240064.

The spelling of 497081856 in words is "four hundred ninety-seven million, eighty-one thousand, eight hundred fifty-six".