499727321 has 2 divisors, whose sum is σ = 499727322. Its totient is φ = 499727320.

The previous prime is 499727299. The next prime is 499727351. The reversal of 499727321 is 123727994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392832400 + 106894921 = 19820^2 + 10339^2 .

It is a cyclic number.

It is not a de Polignac number, because 499727321 - 2¹⁸ = 499465177 is a prime.

It is not a weakly prime, because it can be changed into another prime (499727351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249863660 + 249863661.

It is an arithmetic number, because the mean of its divisors is an integer number (249863661).

Almost surely, 2^499727321 is an apocalyptic number.

It is an amenable number.

499727321 is a deficient number, since it is larger than the sum of its proper divisors (1).

499727321 is an equidigital number, since it uses as much as digits as its factorization.

499727321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The square root of 499727321 is about 22354.5816556696. The cubic root of 499727321 is about 793.5562161036.

The spelling of 499727321 in words is "four hundred ninety-nine million, seven hundred twenty-seven thousand, three hundred twenty-one".