493221277 has 2 divisors, whose sum is σ = 493221278. Its totient is φ = 493221276.

The previous prime is 493221271. The next prime is 493221317. The reversal of 493221277 is 772122394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 376127236 + 117094041 = 19394^2 + 10821^2 .

It is a cyclic number.

It is not a de Polignac number, because 493221277 - 2¹¹ = 493219229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493221271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246610638 + 246610639.

It is an arithmetic number, because the mean of its divisors is an integer number (246610639).

Almost surely, 2^493221277 is an apocalyptic number.

It is an amenable number.

493221277 is a deficient number, since it is larger than the sum of its proper divisors (1).

493221277 is an equidigital number, since it uses as much as digits as its factorization.

493221277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 37.

The square root of 493221277 is about 22208.5856596047. The cubic root of 493221277 is about 790.0973425957.

The spelling of 493221277 in words is "four hundred ninety-three million, two hundred twenty-one thousand, two hundred seventy-seven".