497767842 has 80 divisors (see below), whose sum is σ = 1310424192. Its totient is φ = 139229280.

The previous prime is 497767841. The next prime is 497767847. The reversal of 497767842 is 248767794.

497767842 is a `hidden beast` number, since 497 + 76 + 7 + 84 + 2 = 666.

It is a super-3 number, since 3×497767842³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (497767841) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12423 + ... + 33909.

Almost surely, 2^497767842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 497767842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655212096).

497767842 is an abundant number, since it is smaller than the sum of its proper divisors (812656350).

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

497767842 is a wasteful number, since it uses less digits than its factorization.

497767842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21525 (or 21516 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The square root of 497767842 is about 22310.7113736878. The cubic root of 497767842 is about 792.5176540100.

The spelling of 497767842 in words is "four hundred ninety-seven million, seven hundred sixty-seven thousand, eight hundred forty-two".