497881281 has 4 divisors (see below), whose sum is σ = 663841712. Its totient is φ = 331920852.

The previous prime is 497881249. The next prime is 497881289. The reversal of 497881281 is 182188794.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 497881281 - 2⁵ = 497881249 is a prime.

It is a super-3 number, since 3×497881281³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 497881281.

It is not an unprimeable number, because it can be changed into a prime (497881289) 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, 82980211 + ... + 82980216.

It is an arithmetic number, because the mean of its divisors is an integer number (165960428).

Almost surely, 2^497881281 is an apocalyptic number.

It is an amenable number.

497881281 is a deficient number, since it is larger than the sum of its proper divisors (165960431).

497881281 is a wasteful number, since it uses less digits than its factorization.

497881281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165960430.

The product of its digits is 258048, while the sum is 48.

The square root of 497881281 is about 22313.2534830759. The cubic root of 497881281 is about 792.5778531457.

The spelling of 497881281 in words is "four hundred ninety-seven million, eight hundred eighty-one thousand, two hundred eighty-one".