499491329 has 2 divisors, whose sum is σ = 499491330. Its totient is φ = 499491328.

The previous prime is 499491287. The next prime is 499491353. The reversal of 499491329 is 923194994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 329241025 + 170250304 = 18145^2 + 13048^2 .

It is a cyclic number.

It is not a de Polignac number, because 499491329 - 2⁸ = 499491073 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (499491029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249745664 + 249745665.

It is an arithmetic number, because the mean of its divisors is an integer number (249745665).

Almost surely, 2^499491329 is an apocalyptic number.

It is an amenable number.

499491329 is a deficient number, since it is larger than the sum of its proper divisors (1).

499491329 is an equidigital number, since it uses as much as digits as its factorization.

499491329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 50.

The square root of 499491329 is about 22349.3026513133. The cubic root of 499491329 is about 793.4312796981.

The spelling of 499491329 in words is "four hundred ninety-nine million, four hundred ninety-one thousand, three hundred twenty-nine".