497221099 has 2 divisors, whose sum is σ = 497221100. Its totient is φ = 497221098.

The previous prime is 497221069. The next prime is 497221141. The reversal of 497221099 is 990122794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 497221099 - 2¹³ = 497212907 is a prime.

It is not a weakly prime, because it can be changed into another prime (497221019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248610549 + 248610550.

It is an arithmetic number, because the mean of its divisors is an integer number (248610550).

Almost surely, 2^497221099 is an apocalyptic number.

497221099 is a deficient number, since it is larger than the sum of its proper divisors (1).

497221099 is an equidigital number, since it uses as much as digits as its factorization.

497221099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 497221099 is about 22298.4550810140. The cubic root of 497221099 is about 792.2273833354.

The spelling of 497221099 in words is "four hundred ninety-seven million, two hundred twenty-one thousand, ninety-nine".