497779481 has 16 divisors (see below), whose sum is σ = 518954304. Its totient is φ = 477114624.

The previous prime is 497779441. The next prime is 497779511. The reversal of 497779481 is 184977794.

It is a cyclic number.

It is not a de Polignac number, because 497779481 - 2²² = 493585177 is a prime.

It is a super-2 number, since 2×497779481² = 495568823409258722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497779441) 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, 1089005 + ... + 1089461.

It is an arithmetic number, because the mean of its divisors is an integer number (32434644).

Almost surely, 2^497779481 is an apocalyptic number.

It is an amenable number.

497779481 is a deficient number, since it is larger than the sum of its proper divisors (21174823).

497779481 is a wasteful number, since it uses less digits than its factorization.

497779481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920.

The product of its digits is 3556224, while the sum is 56.

The square root of 497779481 is about 22310.9722109997. The cubic root of 497779481 is about 792.5238309465.

The spelling of 497779481 in words is "four hundred ninety-seven million, seven hundred seventy-nine thousand, four hundred eighty-one".