497367221 has 8 divisors (see below), whose sum is σ = 544407864. Its totient is φ = 451581120.

The previous prime is 497367191. The next prime is 497367223. The reversal of 497367221 is 122763794.

It can be written as a sum of positive squares in 4 ways, for example, as 70324996 + 427042225 = 8386^2 + 20665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 497367221 - 2¹⁴ = 497350837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497367223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312806 + ... + 314391.

It is an arithmetic number, because the mean of its divisors is an integer number (68050983).

Almost surely, 2^497367221 is an apocalyptic number.

It is an amenable number.

497367221 is a deficient number, since it is larger than the sum of its proper divisors (47040643).

497367221 is a wasteful number, since it uses less digits than its factorization.

497367221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627271.

The product of its digits is 127008, while the sum is 41.

The square root of 497367221 is about 22301.7313453463. The cubic root of 497367221 is about 792.3049816190.

The spelling of 497367221 in words is "four hundred ninety-seven million, three hundred sixty-seven thousand, two hundred twenty-one".