497222881 has 2 divisors, whose sum is σ = 497222882. Its totient is φ = 497222880.

The previous prime is 497222833. The next prime is 497222897. The reversal of 497222881 is 188222794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342842256 + 154380625 = 18516^2 + 12425^2 .

It is a cyclic number.

It is not a de Polignac number, because 497222881 - 2⁷ = 497222753 is a prime.

It is a super-2 number, since 2×497222881² = 494461186779880322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (497225881) 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 as a sum of consecutive naturals, namely, 248611440 + 248611441.

It is an arithmetic number, because the mean of its divisors is an integer number (248611441).

Almost surely, 2^497222881 is an apocalyptic number.

It is an amenable number.

497222881 is a deficient number, since it is larger than the sum of its proper divisors (1).

497222881 is an equidigital number, since it uses as much as digits as its factorization.

497222881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 43.

The square root of 497222881 is about 22298.4950389034. The cubic root of 497222881 is about 792.2283297604.

The spelling of 497222881 in words is "four hundred ninety-seven million, two hundred twenty-two thousand, eight hundred eighty-one".